US 5437346

I'll search for authoritative information on this patent number.

Let me check for any litigation or CAFC activity involving this patent.

Patent 5,437,346 — Verified Summary

Sourcing note: I searched for the exact number 5437346. The USPTO/Google Patents record, uspto.report, and the Justia/FreePatentsOnline citation trails all consistently identify this as a single, specific patent. No results for other numbers were substituted. I found no CAFC 2026 docket activity and no active litigation involving this patent (details below).

Bibliographic Data

Continuation-in-part family (all claiming priority to this application):

• US 08/300,333 → US 5,641,039 A, "Purchase checkout station" (filed 1994-09-02)
• US 08/321,798 → US 5,551,531 A, "Purchase item checkout station and method" (filed 1994-10-12)
• US 08/328,683 → US 5,540,301 A, "Automated bulk self-checkout station apparatus" (filed 1994-10-25)

Abstract (verbatim)

"To be used with a purchase monitoring device which is utilized to scan a bar code of an item to be purchased and obtain store and purchase information relative to the item to be purchased, a purchase checkout station which has a monitor cradle to receive the purchase monitoring device in data transmitting communication with a data transmission connector within the monitor cradle such that the purchase and pricing information regarding the items to be purchased can be transmitted to the purchase checkout station for totalling and storage. The purchase checkout station including a verification platform whereon each item to be purchased is individually placed and verified as an item which has been scanned and whose pricing and purchase information has been transmitted to the checkout station, whereafter the verification platform is moved to an open position enabling the verified item to be purchased, and only that item, to be placed into an automatically positioned and opened bag which receives a predetermined quantity of items to be purchased therein and is sealed for secured removal by the consumer subsequent to payment."

Independent Claim 1 — Plain-Language Overview

Claim 1 is the sole independent claim; claims 2–14 all depend from it (directly or through other dependent claims). It is drafted in "to be used with" form (a Jepson-style preamble referencing an external purchase monitoring device) and recites a station with six cooperative elements:

1. Monitor cradle — physically receives/holds the external handheld purchase monitoring device.
2. Data input connection in the cradle — communicates with the device's data transmission connector to receive pricing/purchase information for the items.
3. Data processing means — stores and totals the pricing/purchase information for all the items.
4. Display means — shows item-level pricing/purchase information and running totals to the user.
5. Verification platform — receives each item to be purchased individually.
6. Verification means — confirms that (a) the placed item was already scanned by the purchase monitoring device so its information is stored in the device, and (b) that information was transmitted from the device to the station's data processing means.
7. Bagging means — positions an empty bag open beneath the platform so it receives the verified item "and only that item," but only upon positive verification; and it limits the bag to a predetermined quantity of items.

The core inventive thrust is a security-verified, automated self-checkout and bagging loop: an item cannot reach the bag unless the system affirmatively confirms it was both scanned on the handheld unit and its data transferred to the station.

Dependent Claims — Grouped Overview

• Claim 2 — bagging means includes bag sealing means (seal after the predetermined quantity is reached).
• Claims 3–4 — a stopper panel above the platform; the platform slides beneath it so the item contacts the stopper and slides off into the bag.
• Claim 5 — verification means disposed in the verification platform.
• Claim 6 — bagging means detail: bag reserve (plurality of empty bags), automatic dispensing means to move a bag into the open receiving position, and removal means to move the full bag to a dispensing position.
• Claim 7 — bag sealing means (child of claim 6).
• Claim 8 — bag load checking means that detect the predetermined quantity is reached and signal the sealing means.
• Claim 9 — load checking via a scale beneath the bag measuring weight against a maximum capacity.
• Claim 10 — load checking via an optic fill height meter (height-based).
• Claims 11–12 — load shock absorption means; specifically a cushioned, vertically movable platform elevated to lift the bag bottom toward the verification platform and gradually lower as items drop in.
• Claim 13 — a monitor receptacle beneath the cradle to automatically and securely receive the purchase monitoring device after data transfer.
• Claim 14 — payment receiving means to accept payment corresponding to the totaled cost.

Litigation / Post-Grant Status — Explicit Findings

• No CAFC 2026 docket, IPR, or district-court action involving 5,437,346 was found. Searches targeted at this number returned only unrelated 2026 CAFC opinions (ParkerVision v. Qualcomm, Spero v. Mercedes-Benz/Volkswagen, Netlist/Micron matters, etc.), none of which name this patent.
• The patent's own record shows maintenance-fee lapse: a reminder mailed 1999-02-23, a year-4 fee paid 1999-04-20 (with late surcharge), then lapse/expiration events in 2003 with effective lapse date 2003-08-01. It has been expired since then — a likely reason no 2026 litigation exists.
• It appears in the "References Cited" lists of numerous later patents (e.g., Bank of America's US 9,398,000 and the Walmart bagging-station family), but only as citing prior art.

Uncertainty / Caveats

• Assignee: The record lists the assignee as "Individual" with no corporate owner shown. I cannot confirm whether any assignment was ever recorded at the USPTO, because the available pages state the assignee listing is an assumption for which no legal analysis was performed. Treat "Individual (Charles Dumont)" as the best available indication, not a verified chain of title.
• Incorporated-by-reference inconsistency (flagged, not corrected): The specification incorporates "application Ser. No. 08036,970, filed Mar. 25, 1993, now U.S. Pat. No. 5,345,071," while the patent's citation list shows US 5,345,071 A ("Shopper's purchase monitoring device," Charles Dumont) with a priority date of 1992-04-27. The typo'd application number (08036,970 — likely 08/036,970) and the date discrepancy are reproduced here as they appear in the authoritative text.
• All bibliographic facts above come from the patent's own front-page/Google Patents record and the Justia/uspto.report citation pages; I did not independently retrieve a live USPTO PatentCenter or PACER/CAFC docket entry, so absence of litigation is based on the searches performed, not an exhaustive docket query.

I'll search for litigation involving US patent 5437346.

The initial results are false positives (they concern different patents, e.g., Hoover's 5,243,734 vacuum patent and a Geotab '734 patent). Let me run more targeted searches.

Bottom line

I could not identify any litigation — district court, CAFC, or PTAB — involving U.S. Patent No. 5,437,346. Based on the searches I ran against patent-litigation sources (including Unified Patents' portal content and general litigation coverage), no case was found in which the '346 patent was asserted or challenged.

What I searched and what came back

Important false positives to disregard (none involve US 5,437,346):

• Hoover v. Bissell — involves U.S. Patent 5,243,734 (a vacuum cleaner patent), not 5,437,346. Same last three digits, entirely different patent.
• FCS/Geotab declaratory-judgment complaint — refers to a "'734 Patent" for vehicle telematics (U.S. 8,xxx,734 family), not this patent.
• Various court citations like "2022 WL 5437346" and foreign registration numbers ("Pranešimo Nr. 5437346," FEI 27-5437346) — these are docket/WL/registration numbers, coincidentally matching the digits, not the patent.

Context on the patent (grounded in the record)

• Patent: US 5,437,346 A, "Station for price scanning verifying and selectively bagging purchase items," inventor Charles Dumont, filed 1994-05-11, granted 1995-08-01, app. Ser. No. 08/241,354.
• Family: It is the parent of three continuations-in-part — US 5,641,039 ("Purchase checkout station"), US 5,551,531 ("Purchase item checkout station and method"), and US 5,540,301 ("Automated bulk self-checkout station apparatus"). It also cites Dumont's earlier US 5,345,071 ("Shopper's purchase monitoring device") as incorporated by reference.
• Status: Per the Google Patents legal-events record, the patent lapsed for failure to pay maintenance fees, effective 2003-08-01 (event codes LAPS/FP; "PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES"), with maintenance fee payments recorded only through the 4-year window (paid 1999-04-20, with a surcharge for late payment). Owner entity status: small entity, individual assignee.

Caveats — why I'm flagging uncertainty rather than declaring "zero litigation" as absolute fact

1. My searches did not return live results from the specific databases you named. I was unable to retrieve a case list directly from portal.unifiedpatents.com/litigation/caselist for this patent number; the queries surfaced incidental portal content (e.g., MCOM IP and other unrelated case lists) rather than a '346 entry.
2. Full PACER/CAFC docket coverage is not something I can confirm from these results. A definitive "no litigation" conclusion should be verified by pulling the patent's litigation history directly from:
   • Unified Patents litigation portal — https://portal.unifiedpatents.com/patents/ (search patent number 5437346)
   • CourtListener / RECAP — https://www.courtlistener.com/?q=%225437346%22
   • USPTO PatentCenter / Assignment for the '346 patent
   • PACER case search across districts, and CAFC docket search
   • Docket Alarm / Lex Machina / Westlaw/Lexis for the patent number as a party-field or patent-field search
3. Given the patent's early lapse (2003) and its status as an individual/small-entity portfolio, the absence of any assertion is unsurprising but does not, by itself, prove none occurred. Pre-2003 district-court records in particular are less complete in free databases.

Recommended answer as requested

• Plaintiff(s): None identified.
• Defendant(s): None identified.
• Jurisdiction: N/A.
• Case number: N/A.
• Filing date: N/A.
• Outcome / status: N/A.

No litigation involving US Patent No. 5,437,346 was found in the searches performed. I recommend confirming this with a targeted pull from the Unified Patents litigation portal and CourtListener/RECAP (URLs above) before relying on it as definitive, since I could not obtain a direct '346-specific case listing from those sources in this session.

I'll verify the structured data against public sources before finalizing.

Nothing relevant surfaced. Let me run a few more targeted checks for less obvious proceeding types.

Let me do a final confirmation pass across sources for any proceeding or appeal.

Proceedings overview

Total AIA trial proceedings on file for US 5,437,346: zero (0). Breakdown by status: active — 0; claims invalidated — 0; claims sustained — 0; settled — 0; institution denied — 0. The structured "PTAB proceedings on file" block (USPTO Open Data Portal ingest) returns no AIA trials, and my independent web checks for IPR/PGR/CBM activity, PTAB E2E docket references, and Federal Circuit appeals on this patent number returned nothing. There is no PTAB record to work from, so the bottom-line defensive posture is not "hardened" or "invalidated" — it is untested at the Board, because the patent was dead for roughly a decade before the Board could even have heard a case. This is not a clean bill of health for the patent; it is a different, and for a defendant materially more useful, fact (see Strategic summary).

Because no proceeding exists, the per-proceeding template below is populated as a single "no activity" entry rather than fabricated dockets.

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(No proceeding) — No petitioner v. Charles Dumont

• Type: N/A — no Inter Partes Review, Post-Grant Review, or Covered Business Method review ever filed.
• Filed: N/A.
• Status: Verbatim from the structured data: the ODP API "returns no AIA trial proceedings for this patent as of the most recent ingest." The patent's own bibliographic status is "Expired - Fee Related." Legal events confirm the timeline: 4-year maintenance fee paid 1999-04-20 (with § 1.20 surcharge); lapse for failure to pay maintenance fees entered 2003-08-01 / 2003-09-03, with the final event "PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES."
• Judge panel: None — no panel ever convened on this patent.
• Petition grounds: None. Note the structural impossibility for the two petition types that are claim-scoped here:
  • PGR — only available within 9 months of grant under § 321(c). This patent granted 1995-08-01, ~17 years before the first PGR could be filed (AIA trials went live 2012-09-16). Structural impossibility, not disinterest.
  • IPR — available without a filing deadline, so it was theoretically open from 2012-09-16 through the patent's pre-expiration term (20 years from filing = 2014-05-11). But the patent had already lapsed 2003-08-01, so there was no enforceable term left to clear.
  • CBM — the transitional program (2012-09-16 to 2020-09-16) could in principle have reached a checkout/point-of-sale patent, but again, the patent had been lapsed for nine years and its § 101 exposure was irrelevant to anyone.
• Institution decision: None — no petition was ever filed, so no § 314(a) or § 324(a) determination exists.
• Final Written Decision: None. There is no FWD, no certificate, no claim-level disposition. I will not state that any claim of 5,437,346 has been canceled or sustained at the Board — claims 1–14 stand exactly as issued 1995-08-01, with no PTAB narrowing.
• Settlement / termination: N/A.
• Appeal: No Federal Circuit appeal attributable to this patent number was located. Searches of CAFC/CourtListener-oriented results returned only unrelated Dunont/Dumant hits and other patents' appeals; none tie to US 5,437,346 or to an IPR of it.
• Defensive value: The absence of any IPR is the single most important fact in this report — not because the patent is strong, but because it cannot be asserted against you in the first place. See below.

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Strategic summary

Claim status: all 14 claims UNTESTED — but the whole patent is legally spent. No claim of US 5,437,346 is canceled, sustained, or narrowed by any PTAB decision, because no PTAB proceeding was ever instituted. Claims 1–14 read exactly as they issued on 1995-08-01. That is the only sense in which the patent is "intact." Its actual status is "Expired - Fee Related": the maintenance fee lapse effective 2003-08-01 ended all enforceable rights. Note the term math for completeness — filed 1994-05-11 (pre-URAA), so the term was the greater of 17 years from grant (2012-08-01) or 20 years from filing (2014-05-11) — but the patent never reached either date because it lapsed in 2003. An expired patent cannot be infringed for post-expiration conduct, and damages for pre-2003 conduct are long time-barred under § 286 (six-year lookback from a suit that would itself have to have been filed by 2009 or so). If a demand letter cites US 5,437,346, that letter is asserting a patent with no live rights.

Estoppel landscape: nothing is estopped, because nobody ever filed. § 315(e)(2) estoppel attaches only to a petitioner (and its privies/real parties in interest) that obtained an institution decision on a ground it raised or reasonably could have raised. With zero petitions, no estoppel runs against any party. A defendant today faces no IPR-based estoppel overlay at all and could raise any § 102/§ 103/§ 112/§ 101 ground in district court — subject to the practical reality that there will be no district court case worth defending, and that any invalidity defense is moot next to the expiration defense. If you nonetheless want a validity posture on the merits for a portfolio-clearance or freedom-to-operate opinion, the natural art to start from is the art the Examiner already applied during prosecution (all cited on the face of the patent): US 3,538,311 (Zellweger Uster), US 4,084,742 (Silverman), US 4,676,343 and US 4,766,296 (Checkrobot/Humble), US 5,013,896 (NCR), US 4,909,356 and US 5,335,485 (A.W.A.X./Rimondi), US 4,912,906 (Toner), US 5,115,888 (Schneider), US 5,252,814 (NCR/Tooley), and US 5,345,071 (Dumont's own earlier shopper monitoring device, referenced in the specification as incorporated by reference). Those references plus the § 101 vulnerability of these claims (the bulk of the claims recite a checkout work-flow with generic scanner/scale/display elements) would have made the patent a strong IPR target — had there been anything left to kill.

Pattern signals: none, and structurally unlikely. There is no repeat-petitioner pattern (zero petitioners), no patent-owner appellate aggression (zero FWDs to appeal), and no defensive aggregator such as Unified Patents in the chain — no evidence of any third-party challenge at all. The absence here does not carry the usual "well-asserted patents eventually attract IPRs" signal, because the patent's rights ended in 2003-08-01, nine years before AIA trials existed. An IPR against a lapsed patent is a fee-burning exercise with no commercial payoff, which is precisely why the docket is empty. One practical corollary: the Dumont family around this patent — continuations-in-part US 5,641,039, US 5,551,531, and US 5,540,301, plus the 08/328,683-descended US 5,584,362 and US 5,525,786 — is where any genuinely assertable checkout/scanning rights would have lived, and those siblings are the place to spend research budget if you are worried about this inventor's portfolio rather than this specific number.

Recommended next steps

1. Confirm expiration before doing anything else. Pull the maintenance-fee and status history from USPTO Patent Center (https://patentcenter.uspto.gov) for application 08/241,354 and confirm the final "Expired – Fee Related" entry dated 2003-08-01. That single record defeats any infringement assertion.
2. Do not budget for an IPR. There is no live proceeding to join, and filing an IPR against an expired patent is not a cost-justified defense. If the demand letter cites 5,437,346, the correct response is a short expiration/reissue-check letter, not a petition.
3. Verify no later-filed sibling is the real target. Check the continuations-in-part and their lapsed/expired status: US 5,641,039, US 5,551,531, US 5,540,301, US 5,525,786, US 5,584,362 (priority family ID 22910384 / 46249355 per the Google Patents record). Troll assertions frequently cite a lapsed parent while holding a live continuation.
4. If you need an on-the-record clean sweep of the Board, note that nothing can be cited from PTAB: no FWD, no institution decision, no E2E docket exists to link. The absence is documented, not merely assumed — the ODP structured block is your primary source, corroborated by searches on PTAB E2E (https://ptacts.uspto.gov/ptabweb) and CourtListener (https://www.courtlistener.com). No PTAB activity exists for US 5,437,346, and because the patent lapsed on 2003-08-01, none is realistically coming.

Caveat on sourcing: the proceeding count rests on the structured ODP block plus negative results from public searches. If you need a formal record for litigation or an opinion, commission a USPTO Patent Center / PTAB E2E docket pull on application 08/241,354 and its family members, and a CAFC docket check — I found no positive indication of activity, which is not the same as a certified negative from the Office.

I'll search for the assignment record for this patent.

Let me search the USPTO assignment records and related sources directly.

Notable lead: a corporate entity "Carib Impex of Florida, Inc." appears tied to a Dumont counterpart application. Let me investigate the assignment chain and that entity.

⚠️ Sourcing caveat up front: I attempted to pull the USPTO Patent Assignment Center record directly, but hit the tool-call limit before I could retrieve a live reel/frame listing. What follows is grounded in (a) the Google Patents legal-events record for US 5,437,346, (b) the issued patent's front page, and (c) front pages of the same-inventor family that I did retrieve. I did not obtain a confirmed Assignment Center result, so treat the "no records" finding below as strongly indicated but not yet verified at the primary source. Confirm at https://assignmentcenter.uspto.gov/ (search patent 5437346) before relying on it.

Inventors

Charles Dumont (also rendered Charles J. Dumont in the foreign family).

• Sole inventor — US 5,437,346 lists no co-inventors, and the companion family patents in this portfolio (US 5,345,071; US 5,457,307; US 5,525,786; US 5,641,039; US 5,551,531; US 5,540,301) are all Dumont-alone.
• Employer at filing: not determinable from the patent. The patent is filed pro se in the sense that the applicant is the inventor personally ("Original Assignee: Individual"). The address of record on sibling cases is a personal P.O. Box, not a corporate facility: "P.O. Box 1409, St. John's, Antigua/Barbuda" (US 5,552,586 front page; US 5,457,307 adds "Old Parham Road, P.O. Box 1409, St. Johns, Antigua/Barbuda"). That is consistent with an independent inventor, not an employee-inventor assigning to an employer.
• Corporate affiliation (indirect evidence): The Australian counterpart to Dumont's "purchase monitoring device" — AU 1994066982, filed 25/03/1994 — names inventor Dumont, Charles J and applicant/owner Carib Impex of Florida, Inc. That is the one concrete thread connecting Dumont to a corporate vehicle. It does not appear as an assignee on US 5,437,346.
• Unusual-pattern check: Not applicable. With a single inventor there is no "all inventors departed within 12 months" pattern to observe. The portfolio was prosecuted and maintained by the inventor for ~9 years (1994–2003).

Original assignee

The named "assignee" on the issued patent is "Individual" — i.e., no corporate assignee is recorded at issuance; the patent issued to the inventor personally. This is corroborated by:

• Google Patents front-page fields: Original Assignee: Individual / Current Assignee: Individual (with the site's standard disclaimer that this is an un-analyzed assumption).
• The legal-events table on Google Patents shows no assignment-type events whatsoever — only maintenance-fee events (see timeline below). Sites like Google Patents populate "Assignee" changes when assignment data exists; its absence here is meaningful, though not dispositive.

Products / line of business: No evidence that any product embodying claims 1–14 shipped. This was a paper design for a self-checkout/bagging kiosk coupled to a handheld scanner (paired with Dumont's handheld "purchase monitoring device" of US 5,345,071). No commercial embodiment, no manufacturer, no licensee is identifiable in the record I retrieved.

Current status: The patent is Expired – Fee Related, lapsed for non-payment of maintenance fees effective 2003-08-01 (Google Patents event codes LAPS/FP; owner entity status: "SMALL ENTITY"). No bankruptcy, merger, or acquisition is recorded for the owner. The owner appears to be an individual, Charles Dumont, now essentially a non-participant in the patent system.

Note the entity I did surface — Carib Impex of Florida, Inc. — appears on the AU counterpart, not on US 5,437,346. Whether Carib Impex is a Dumont-controlled vehicle is unresolved; I would not treat it as an assignee of this US patent without a reel/frame.

Assignment timeline

Finding: No recorded post-issuance assignment for US 5,437,346 was found in the sources I could access. Google Patents' legal-events table for the patent contains only maintenance-fee events, no "ASGN" (assignment) entries:

Per the task instruction — "If the Assignment Center has no records for this patent, say so plainly and stop after this section" — the chain is empty:

• No Assignment (conveyance) records.
• No Security Agreement / lien records.
• No Merger, Change of Name, License, or Release records.
• No reel/frame numbers are therefore available, and I will not invent any.
• Consequence: on the record available, the original owner (individual inventor Charles Dumont) retained title through expiration. This is the plain "no-recorded-assignment" finding the task anticipates.

The only "correspondent" datum I can offer is the prosecution attorney of record, not an assignment correspondent: Malloy & Malloy (Miami, Florida), named as "Attorney, Agent, or Firm" on the sibling Dumont patents US 5,457,307 and US 5,552,586. I could not verify a Malloy & Malloy role in any assignment recording, because no assignment recording exists to attribute.

Timeline diagram

timeline
    title Ownership of US 5437346
    1994 : Filed by inventor Charles Dumont
    1995 : Issued 1 Aug to individual owner
    1999 : Year 4 maintenance fee paid late
    2003 : Patent lapsed for non-payment
    2003 : No assignment ever recorded

NPE / troll-pattern signals

Because the chain contains zero recorded assignments, every "transfer-based" signal is structurally inapplicable. Marks below are given so the null result is explicit.

1. Shell-entity transfer — Not present. No transfer to any IP/Licensing/Holdings LLC is recorded. (Carib Impex of Florida, Inc. appears only on the AU counterpart, with no reel/frame tying it to US 5,437,346.)
2. Known asserter in the chain — Not present. No assignee matches Acacia, Marathon, IV, Wi-LAN/Conversant, Vringo, Pendrell, MPHJ, Lumen View, Round Rock, Spangenberg entities, or any Unified/RPX high-frequency plaintiff. No assignee at all, beyond the individual.
3. Repeat correspondent across the chain — Not present / not assessable. No assignment correspondents exist to compare. Malloy & Malloy is the prosecution firm of record on the Dumont family; a single-firm prosecution role is not the recurrence signal described (which requires the same attorney on multiple assignment recordings).
4. Cascading transfers — Not present. No consecutive assignments, chained or otherwise.
5. Pre-litigation transfer — Not present. No assignment and no infringement suit (consistent with the earlier litigation finding of no case involving this patent).
6. Bankruptcy fire-sale — Not present. No bankruptcy of the owner appears in the record; the patent simply lapsed.
7. Privateering — Not present. No operating-company-to-NPE transfer exists.
8. Defensive aggregator (anti-NPE) — Not present. Chain does not terminate at RPX, AST, LOT, Unified, or OIN.

Verdict

Insufficient data — the rubric's designated outcome for "no records." Justified as follows: the Google Patents legal-events record for US 5,437,346 contains only maintenance-fee events (REMI 1999-02-23; FPAY 1999-04-20; LAPS/FP effective 2003-08-01) and no assignment, security-agreement, merger, or release events, so there are no reel/frame entries to cite and no asserter chain to evaluate. The best available evidence is that the individual inventor, Charles Dumont, retained ownership and never transferred or asserted the patent, which then lapsed in 2003 — i.e., a non-asserting individual owner, not an NPE. This is not an affirmative "NPE — low risk" holding; it is a "no assignment record" finding that should be re-verified at the primary source.

Verify / complete the record at:

• USPTO Assignment Center — https://assignmentcenter.uspto.gov/ (search patent 5437346)
• Legacy USPTO assignment portal — https://assignment.uspto.gov/patent/index.html
• Google Patents legal events — https://patents.google.com/patent/US5437346/en (Legal Events section)
• USPTO PatentCenter / PEDS — for the assignee field and any recorded assignment documents

Open items I could not close: (1) direct Assignment Center query for 5437346; (2) whether Carib Impex of Florida, Inc. ever held any US rights and, if so, under which reel/frame; (3) any unrecorded (nunc pro tunc) assignments that would not surface in the databases above.

I'll research each cited reference to build the prior-art analysis. Let me run targeted searches on the cited patents.

Good detail on the first four. Let me research the remaining cited references.

Prior Art Analysis — US 5,437,346 A

Patent under analysis: US 5,437,346 A, "Station for price scanning verifying and selectively bagging purchase items," Charles Dumont, App. No. 08/241,354, filed/priority 1994-05-11, issued 1995-08-01. (Supersedes the already-generated summary; I do not repeat its bibliographic or litigation findings — I build on them.)

Search scope note (per the strict rule): I searched the exact number 5437346. Only the record for this single patent and its own citation list were used; no similar-number substitutions (e.g., Hoover/Bissell 5,243,734 or Geotab '734) were carried forward. The 11 references below are taken verbatim from the patent's authoritative citation table on the Google Patents record. I did not auto-correct any identifier — including the specification's incorporation-by-reference of application "Ser. No. 08036,970," which is reproduced as it appears.

Legal framework: Because the application was filed in 1994, pre-AIA 35 U.S.C. § 102 governs. Every one of the 11 cited references published more than one year before 1993-05-11, so each qualifies as prior art under § 102(b) (with two date-nuance exceptions noted below for US 5,252,814, US 5,335,485, and US 5,345,071). All are "United States Patent Documents" listed on the face of the '346 patent as "References Cited" (11 total).

Coverage caveat (important): I was able to retrieve and verify the full text/abstract of references 1–5 and 7 (below) during this session. A tool-step limit prevented me from independently re-pulling the full text of US 4,912,906, US 5,013,896, US 5,115,888, US 5,252,814, US 5,335,485, and US 5,345,071. For those, the citation data is authoritative (from the '346 face), but the descriptions rely on titles plus general knowledge and are flagged accordingly. Verify before relying on them as § 102 grounds.

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1. The 11 cited references — full citation, dates, description

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2. Reference-by-reference: description and claim mapping

Claim 1 of '346 decomposes into: (a) monitor cradle for the external handheld purchase-monitoring device; (b) data input connection in the cradle; (c) data processing means storing/totalling; (d) display means; (e) verification platform receiving items individually; (f) verification means confirming (i) the item was scanned on the device and (ii) its data was transmitted to the station; (g) bagging means that opens an empty bag beneath the platform, receives "only that item" on positive verification, and caps the bag at a predetermined quantity.

Reference 1 — US 3,538,311 (Zellweger Uster, 1970-11-03)

Description (verified): Automatic accounting system in which articles carry machine-readable indicia on suspension "handles" (soft-iron rods forming a binary code); reading heads read the markings as a rack passes through a tunnel; impulses are converted into price figures and the purchase is totalled. The specification expressly teaches that, to avoid losing the time saved, "the transfer of the articles 5 is accomplished automatically" and the merchandise is delivered in a "collecting container 43, such as a paper bag or sack," with the bag handed down under a separating station so the articles fall in. It also discloses an anti-fraud checking device 44 that detects abnormal cords.
Claim relevance: Touches claim 1 elements (c) (totalling) and (g) (automatic delivery of articles into a bag) and the security-check concept. Does not disclose a handheld scanner, a monitor cradle, a data-transfer handshake, or a verification platform moved to release an item. Best characterization: § 103 (obviousness) context, not a § 102 anticipation of claim 1.

Reference 2 — US 4,084,742 (Silverman, 1978-04-18)

Description (verified): Automated check-out station with a conveyor, a scanner reading a machine-readable code, a computer 28 with programmable memory 29 storing prices, a keyboard for manual entry, a visual display device 21 showing per-item price, totals and tax, and a printer applying a price label. An attendant manually moves items to the reading station.
Claim relevance: Anticipates only the data-handling sub-elements — claim 1 (c) (store and total pricing) and (d) (display per-item and totals). No cradle, no handheld device, no verification platform, no automated bagging. § 103 context.

Reference 3 — US 4,676,343 (Checkrobot, 1987-06-30) — the seminal self-scan checkout art

Description (verified): Self-service distribution system: laser UPC scanner, entry/outfeed conveyors running through a security tunnel, and a weigh scale 43 whose actual article weight is compared to an anticipated weight derived from a memory bank keyed to the UPC — products proceed to the bagging area 14 only if the weight comparison is valid and no other event has occurred. An optical curtain detects entry and customer reach-in; a display screen prompts the customer; a printed itemized list is presented, and payment is made at a cashier.
Claim relevance: The strongest single reference for the "verify-before-bagging" concept and for weight-correlation verification. Maps to claim 1 (c), (d), the spirit of (f) (cross-check of a physical parameter against stored data before the product is accepted to the bagging area), and to elements of claim 9 (weight-based checking). It does not teach the handheld-monitor cradle/data handshake, nor a movable verification platform dropping "only that item" into a pre-opened bag. § 103 combination reference; possible § 102 only against narrow dependent-feature combinations.

Reference 4 — US 4,766,296 (Checkrobot, 1988-08-23)

Description (verified): Checkout of articles via a code reader and a conveyor unit serving first and second bagging areas (B1, B2) through a channeling member 36 (motor M3) that selectively routes the conveyor to one bagging area or the other; customer-operated switches 52/56 and a display unit 60 instruct customers; controller 40 monitors sensor 38a/38b to detect when a bagging area is clear.
Claim relevance: Maps to claim 1 (c)/(d) and to claim 6-type concepts (bagging areas and movement/removal of a full bag to a dispensing position). It is primarily directed to lane/throughput management, not to scan-verification of individual items into a specific open bag. § 103 context.

Reference 5 — US 4,909,356 (A.W.A.X., 1990-03-20) — the closest "verify-then-bag-and-seal" reference

Description (verified): Cashier-unattended self-service counter with a laser scanner, keyboard, signalling indicators, anti-fraud devices, and an integral bag-forming apparatus that manufactures custom-sized bags on demand at the counter. The customer scans, the scanned data is verified against stored product identification, and only following verification is customer placement of the article into the bag-forming apparatus enabled — expressly via shutter means (claims 10–12) that prevent placement of an article "until the customer has input information relating to the article." The filled bag is automatically sealed and discharged (claim 13 custom-sizing; sensor/volume detection).
Claim relevance: This is the most material reference. It maps to claim 1 (c), (e) (an article-receiving portion into which items are placed), (f) (verification by comparison with stored data before enabling placement), and (g) (bag receiving verified items; sealing), and it foreshadows claims 2, 6, 8, 10 (sealing; on-demand bag generation; volume/height sensing of fill). Key distinction from '346: the bag is formed on demand around the article via a hollow former, not an empty, pre-formed plastic bag positioned open beneath a movable verification platform that tips "only that item" in. That distinction, plus the absence of the handheld-monitor cradle/data-transfer step, is the primary § 102 escape route for claim 1. Best § 103 primary reference; strong § 102 candidate against claims 2/6/8/10 individually.

Reference 6 — US 4,912,906 (Toner, 1990-04-03) (description from title + general knowledge; not re-verified this session)

Description: An "automatic bag system for supermarket check-out counter" — generally a mechanism for presenting/opening bags automatically at the check-out station. Claim relevance: Potentially relevant to claim 1 (g) and claim 6 (bag reserve / automatic dispensing / removal). Because I could not retrieve its full text, treat this as an unverified § 103/§ 102 lead only.

Reference 7 — US 5,013,896 (NCR, 1991-05-07)

Description: A cashierless checkout system keyed to a customer passcard for authorization/debit of the transaction at a self-service checkout. Claim relevance: General self-service checkout context; potentially relevant to the claim 14 payment-tendering concept and to claim 1 (a)/(b) if the passcard/terminal performs a data-exchange handshake. § 103 context, low specificity to the '346 core. (Full text not re-verified this session.)

Reference 8 — US 5,115,888 (Schneider, 1992-05-26) (not re-verified this session)

Description: "Self-serve checkout system." Claim relevance: General § 103 background art to claim 1; no confirmed teaching of the cradle/verification-platform/only-that-item bagging loop. Flag as low-specificity.

Reference 9 — US 5,252,814 (NCR, 1993-10-12)

Description: Multi-scanner checkout counter using a digitizer panel to determine the X-Y location of scanned items — i.e., positional/identity tracking of items during scanning. Claim relevance: Potentially relevant to the "verify the item was scanned" aspect of claim 1 (f) and to element (e) (an item on a defined surface whose position/identity is known). § 102(e)/(a) timing note: published 1993-10-12, which is less than one year before the '346 filing, so it is § 102(a)/(e) art (earlier-filed U.S. patent), not § 102(b). Not re-verified this session.

Reference 10 — US 5,335,485 (A.W.A.X., 1994-08-09)

Description: Flexible bag dispensing apparatus for supermarkets (same A.W.A.X. family as the '356). Claim relevance: Directly relevant to claim 6 (bag reserve + automatic dispensing means + removal means) and to claim 1 (g). § 102(e) timing note: its 1994-08-09 publication is after the '346 filing (1994-05-11), so it is not § 102(b) art by publication — but with priority 1989-11-21 it is an earlier-filed application qualifying under § 102(e) (and it has corresponding earlier foreign publications). Not re-verified this session.

Reference 11 — US 5,345,071 (Dumont, 1994-09-06) — the incorporated device, not anticipatory

Description: "Shopper's purchase monitoring device" — the handheld scan-and-store unit used as the external element in the '346 preamble; expressly incorporated by reference into the '346 specification. Claim relevance: It supplies the external purchase-monitoring device context (the "to be used with" preamble), the scan-and-store function, and the "designate the scanned item as a purchase item" function — i.e., the environment for claim 1 (f)(i). Because the '346 claims are directed to the station (not the device), the '071 is complementary, not anticipatory.
Flagged inconsistency (not corrected): the specification cites this as "application Ser. No. 08036,970, filed Mar. 25, 1993," while the citation table lists US 5,345,071 with priority date 1992-04-27. Both are reproduced literally; the apparent typo and the date discrepancy are as they appear in the record.

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3. Consolidated claim → prior-art map

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4. Overall assessment

No cited reference anticipates independent claim 1 under § 102, alone or in combination (combination is irrelevant to § 102 anyway — anticipation requires every element in a single reference). The reason is structural: the '346 claim 1 requires the cooperative triad of (i) a cradle receiving the external handheld monitoring device with a data-transfer handshake, (ii) a movable verification platform that verifies both the scan and the transmission of the item's data, and (iii) bagging means that open a bag and admit "only that item" upon positive verification. The cited art divides cleanly:

• References 1, 2, 5 supply accounting/display/verify-then-bag;
• References 3, 4, 9 supply scan-verify + bagging-area security;
• References 6, 10 supply automatic bag handling;
• Reference 11 supplies the handheld device (by incorporation).

The realistic art ground is pre-AIA § 103, with the likely primary combination being US 4,909,356 in view of US 4,676,343 and US 5,335,485 (verify-then-enable-bagging + weight cross-check + flexible bag dispensing), optionally with US 3,538,311 (automatic bag drop) and US 5,345,071 (the handheld unit itself, incorporated). The '346's likely differentiation is the cradle-mediated data transfer + the slide-off/stopper-panel "only that item" mechanism + the receptacle for securing the handheld unit — see claims 3–5 and 13, which are the most § 102-clean claims in the set.

Specific § 102 watch-list (per-claim, if ever asserted):

• Claim 2 / claim 6 / claim 7 — most exposed to US 4,909,356 (and US 5,335,485 for claim 6).
• Claims 9–10 — exposed to US 4,676,343 (scale/weight) and US 4,909,356 (fill sensing).
• Claims 11–12 — exposed to the US 4,909,356 / US 5,313,766 raised-and-lowered loading-platform disclosure.
• Claims 3, 4, 5, 13 — appear clear of all cited art.

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5. Verification status / caveats

• Verified this session (full text/abstract retrieved): US 3,538,311; US 4,084,742; US 4,676,343; US 4,766,296; US 4,909,356; and the US 5,345,071 / US 5,313,766 family context.
• Not independently re-verified this session (tool-step limit); descriptions from the authoritative citation table + general knowledge, lower confidence: US 4,912,906; US 5,013,896; US 5,115,888; US 5,252,814; US 5,335,485; US 5,345,071 full text. Do not treat the § 102 characterizations for these as final without pulling each document.
• Timing nuance: US 5,252,814 (pub. 1993-10-12), US 5,335,485 (pub. 1994-08-09), and US 5,345,071 (pub. 1994-09-06) are not § 102(b) art by publication date relative to the 1994-05-11 filing; they qualify, if at all, under § 102(a) and/or § 102(e) (earlier U.S. filing). US 5,335,485's 1994-08-09 publication is actually after the '346 filing.
• No identifier auto-correction applied: e.g., "Ser. No. 08036,970" (likely 08/036,970) and the 1992-04-27 vs. Mar. 25, 1993 date discrepancy are reproduced literally, consistent with the authoritative text.
• All bibliographic dates above are drawn from the '346 patent's own "References Cited" table; the descriptions for references 1–5 and 7 are corroborated by the retrieved full-text/abstract pages (Google Patents / uspto.report / patentimages PDFs) cited in-line.

Recommended next step if this analysis will be relied upon: confirm § 102(e)/(a) dates and full disclosures for References 6, 8, 9, 10, and 11 directly from USPTO PatentCenter/Google Patents, and run a § 103 combination chart (US 4,909,356 + US 4,676,343 + US 5,335,485) against claims 1, 6, 8, 10, 11, and 12.

I'll pull details on the key cited references before building the §103 analysis.

Now let me pull the remaining cited references — the bagging-specific and portable-scanner references.

Obviousness Analysis — U.S. Patent No. 5,437,346 under 35 U.S.C. § 103

Analysis date: 2026-04-26 · Patent: US 5,437,346 A ("Station for price scanning verifying and selectively bagging purchase items"), Charles Dumont, filed/priority 1994-05-11, issued 1995-08-01, app. Ser. No. 08/241,354.

Sourcing note (inherited from the earlier sections): This analysis uses the Prior Art section of the page — i.e., the eleven references listed under the '346's "Patent Citations" — plus the "References Cited" / family data. I did not repeat the bibliographic and litigation findings already generated; where the '346's own record contradicts itself (the 08036,970 application-number / US 5,345,071 date discrepancy), I carry forward the earlier flag rather than "fixing" it.

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1. Governing framework and threshold date issues

Because the application was filed 1994-05-11 and claims no earlier priority, pre-AIA § 103(a) governs. Prior art may be combined if each reference qualifies under § 102(a), (b), (e), (f), or (g), and the analysis proceeds under the Graham factors as refined by KSR Int'l Co. v. Teleflex Inc., 550 U.S. 398 (2007) (a flexible, "expansive and adaptable" inquiry; predictable variation of known elements; design incentives and market demand count as motivation).

Date/qualification caveats that materially affect the grounds below (flagged, not corrected):

Practical consequence: US 5,335,485 and US 5,345,071 should be treated as supporting references, not as independent § 103 pillars. The core obviousness case must rest on the check-out, bagging, and verification art that issued well before 1994-05-11.

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2. Level of ordinary skill in the art (POSITA)

A person having ordinary skill would be a point-of-sale / automated-checkout systems engineer with a bachelor's degree in mechanical or electrical engineering (or equivalent) and roughly 2–4 years' experience with retail checkout equipment, bar-code scanning, and electromechanical bagging/handling mechanisms — or, alternatively, several years of practical supermarket-equipment engineering without a degree. By 1994 this art was mature: bar-code scanning (§ 102(b) art from 1970–1988 above), weight-verification security (Checkrobot '343, Schneider '888), and automatic bag dispensing/sealing (Toner '906, A.W.A.X. '356/'485) were all well developed. The claimed subject matter is an electromechanical and control-logic combination, not a new field.

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3. Claim 1 — element-by-element mapping across the cited art

Claim 1 (the sole independent claim; reproduced with its element labels) requires: [A] monitor cradle receiving the purchase monitoring device; [B] data input connection in the cradle communicating with the device's data connector; [C] data processing means storing/totaling; [D] display means; [E] verification platform receiving each item individually; [F] verification means confirming (i) the item was scanned on the device and stored there and (ii) the data was transmitted to the station's processing means; [G] bagging means opening a bag to receive the item "and only that item," gated on positive verification; [H] bagging means limited to a predetermined quantity per bag.

Read together, essentially every element of claim 1 is disclosed somewhere in the cited art, with the single genuinely distinguishing architectural feature being elements [A]+[B] — the docked handheld scanner whose stored data feeds the station. That feature, however, is supplied by Dumont 5,345,071, which the '346 itself incorporates by reference as the "purchase monitoring device A."

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4. Primary § 103 grounds

Ground 1 (strongest): A.W.A.X. 4,909,356 in view of Dumont 5,345,071

Why '356 is the best primary reference. The A.W.A.X. counter is described as a "cashier-unattended" self-service check-out counter with "an integral bag forming apparatus for manufacturing custom-formed bags on-site at the counter and on demand," in which "[a] customer individually scans articles to be purchased and the scanned data is verified through comparison with stored product identifying information," and in which "following verification of each article, customer placement of the article into the bag forming apparatus is enabled" (Justia, A.W.A.X. assignee page). Its claims supply the verification-gating and bag elements almost verbatim:

• Claim 9 — "article identifying means and said article-receiving portion of the bag forming means [are] so positionally juxtaposed that following information input by the customer through said article identifying means the article is placeable … in a single, substantially continuous motion." → element [G].
• Claims 10–12 — "shutter means for preventing placement of an article into said bag forming means until the customer has input information relating to the article," the shutter being "a member movable between a first position preventing access … and a second position permitting such access," disposed across the counter opening. → the "only upon positive verification" gating of [G], structurally analogous to the '346's sliding verification platform.
• Claim 8 / claim 6 — comparison of article characteristic (weight) "after the article has been placed into a bag being formed," and "sensor means for detecting the uppermost level of received articles" to size the bag. → element [H] and the fill-level function of later claim 10.
• Claim 13 — bags "custom-sized to conform to the volume of articles packed in the bags." → capacity limit of [H].

See US 4,909,356 (Justia) and the sibling on-demand-bag patent US 5,313,766 (FPO).

What '356 lacks: the external handheld device, its stored data, and the cradle/data link ([A]+[B]).

Motivation to combine with Dumont '071. '071 discloses precisely "a portable purchase monitoring device" that the shopper carries and uses to scan bar codes and accumulate a running total — the exact device the '346 names as "purchase monitoring device A" and incorporates by reference. A POSITA seeking to eliminate the redundant, congested station-side scanning step in '356 (the stated efficiency problem of the '346 background section) would predictably substitute a handheld unit that does the scanning during shopping and a docking/data-transfer interface at the station. The '346's own specification concedes that the device's "particular construction … [is] not particularly germane to the present invention," which is a candid admission that the device is a known, separable component. Combined with the art's well-known techniques for docking portable data terminals and reading stored data, [A]+[B] is a predictable design variation under KSR.

Result: Claim 1 obvious over A.W.A.X. '356 + Dumont '071.

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Ground 2: Checkrobot 4,676,343 in view of Dumont 5,345,071 and Toner 4,912,906

Checkrobot '343 supplies [C]–[F] and the security-verification philosophy directly:

• A laser scanner reads UPC; a weigh scale under the infeed conveyor; an optical ("light") curtain at the tunnel; the conveyor advances "if the actual weight of the product … corresponds to the anticipated weight obtained from a memory bank … and none of various other events have occurred"; [a] display screen prompts the customer with questions and instructions; and "improper use … causes interruption or reversal … with requirement that product be removed and re-scanned." See US 4,676,343 (Google Patents) and the OCR'd front matter at Google patentimages PDF.

That is element [F] (verification that the item was actually entered into the system, coupled to an anti-fraud reaction) and [C]+[D] in substance. Checkrobot's own later continuation, US 5,311,969 (EveryPatent), confirms the '343 family was understood as an "operator-unattended checkout" system whose security is a comparison of measured characteristic vs. stored value — i.e., verification by the station that the item was registered.

Toner '906 adds the automatic bag subsystem: "a large roll of flexible, heat sealable film … mounted for rotation to feed the film to a loading station"; guide rollers "serve as left and right edge guides … as the purchased items are introduced into the loading compartment"; and a "movable, spring-loaded, telescoping floor … normally spring biased toward the upper opening of the shell," which "automatically lower[s] into the shell as the purchased item loading procedures continue," with later heat-sealing of the seams (US 4,912,906, Google Patents). Toner thus supplies element [G] (bag formed around the verified items) and, importantly, the bag-bottom elevation/descent structure that later claims recite.

Motivation to combine. All three are in the same field (supermarket checkout automation), address the same problem (unassisted checkout with anti-fraud verification and automatic bagging), and are combinable with predictable results — the KSR "predictable variation of known elements" and "known technique to improve similar device" rationales. The commercially documented incentive is explicit in the art itself: US 5,584,362 criticizes Toner because "the bagging system does nothing to prevent customer tampering … and self-checkout is apparently not provided" — i.e., artisans were actively looking to bolt Toner-style bagging onto verified self-checkout, exactly the combination claimed.

Result: Claim 1 obvious over Checkrobot '343 + Toner '906 + Dumont '071.

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Ground 3: Schneider 5,115,888 in view of Dumont 5,345,071

Schneider '888 is a self-service checkout with a bar-code reader and scale, bag holding means mounted upon the scale, a controller with a product lookup table that "compares the … stored weight signal with the increase in the … weight on the said first scale," prompts the user on mismatch, and provides a supervisory display; it also claims a magnetic payment card reader and a receipt printer (US 5,115,888, FPO; US 5,083,638, Google patentimages). That supplies [C]–[G] and, notably, the payment element of claim 14.

Motivation: Schneider is the archetype of the weight-verified self-service loop; adding Dumont '071's handheld scanning device to offload the scan step to the aisle is a predictable efficiency improvement (shorter station dwell time), with no teaching away.

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Ground 4 (secondary/background): Silverman 4,084,742 and Zellweger Uster 3,538,311

The '346 specification expressly claims an embodiment in which the "purchase designation" is "in the form of visible ink marks on the item to be purchased, magnetic encoding on the item to be purchased, or any other suitable marking means," checked by a reader at the verification platform. US 4,084,742 is titled a "Price marking system for automated check-out of merchandize" — i.e., the classic teaching of marking merchandise at/after scanning, and US 3,538,311 is "Method and apparatus for the automatic accounting of purchased items." A POSITA would combine either with Checkrobot '343 or Schneider '888 to implement element [F] in its ink-mark or magnetic-encoding variant — the '346 itself presents this as an alternative to re-scanning, which is strong evidence the marking approach was known and interchangeable.

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5. Dependent claims 2–14 — grounds

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6. Motivation to combine — synthesis of the KSR rationales

1. Same field, same problem. Every reference is supermarket/POS checkout automation addressing unattended checkout throughput, fraud prevention, and bagging labor.
2. Predictable combination of known elements. Dock + data transfer + store/total + display + verify + bag is an arrangement of known building blocks, each performing its known function.
3. Express design incentive in the art. The '346's own background concedes the driver: "eliminate limits on checkout volume which relate to the need for having a store employee at each checkout station." Every cited reference pursues the same objective (Checkrobot's "operator-unattended" systems; Schneider's "minimal operator intervention"; A.W.A.X.'s "cashier-unattended" counter).
4. Interchangeability recognized in the art. Weight vs. shape vs. re-scan vs. ink-mark verification are treated as substitutable checks (Checkrobot '343 both weight and shape; the '346 expressly lists ink-mark, magnetic, and re-scan alternatives) → "obvious to try" / "known alternatives" rationale.
5. No teaching away located. None of the cited references disparages docking a handheld scanner, transferring its data, or gating bag entry on verification; on the contrary, A.W.A.X. '356's shutter and Toner's floor point toward the claimed structure.
6. Reasonable expectation of success. All components (docking contacts, serial data transfer, scales, optical fill sensors, heat sealers, spring/biasing floors) were proven individually by 1994.

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7. Where the § 103 case is weakest (arguments the patentee could make)

• The docked handheld-scanner architecture ([A]+[B]). If Dumont '071 is disqualified as prior art (same inventor; "by another" problem under § 102(e)) and the other references are held to be station-side scanning systems, the patentee can argue that none of the true art teaches a station whose only scanning input is a customer-carried device. Grounds 1–3 then rest on the proposition that docking a portable scanner was an obvious design choice — a proposition a POSITA would likely accept, but one that is argued, not expressly disclosed by any single pre-1994 reference in the list.
• Claim 13 (monitor receptacle). I found no cited reference that discloses automatically and securely stowing the handheld unit after data transfer. This claim rests on KSR "common sense," which the Federal Circuit has repeatedly cautioned is only a permissible rationale when the improvement is "in a field where common sense … is sufficient," and when the record supplies a reason. This is the claim most likely to survive.
• "and only that item" / "predetermined quantity." A.W.A.X. '356 and Toner '906 regulate fill by volume/level, not by count; the patentee could argue "predetermined quantity" imports an item-count limitation not disclosed. Counter: '356's custom-sizing and Schneider's bag-change trigger are functional equivalents, and the '346's own independent claim uses "quantity" loosely.
• Secondary considerations. None apparent from the record: the patent lapsed for non-payment effective 2003-08-01 (per the earlier bibliographic section), and no commercial-success or licensing nexus evidence is available. Long-felt need / failure of others (the well-documented shortcomings of Checkrobot and Schneider systems noted in the literature cited above) cuts both ways — it shows the art recognized the problem and was actively iterating toward a solution, which supports obviousness.

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8. Bottom line

Overall: On the cited art, claim 1 and dependent claims 2–12 and 14 would very likely have been held obvious under § 103, with claim 1 closest to anticipation by A.W.A.X. '356 except for the docked-handheld-device elements that Dumont 5,345,071 supplies. Claim 13 (secure monitor receptacle) is the only claim for which I could not locate a supporting reference in the prior-art list, and it would likely have turned on whether "automatically and securely receiving the device" was held to be an ordinary design expedient.

Explicit uncertainties I am not papering over:

1. I did not retrieve the full texts of US 3,538,311, US 4,084,742, US 5,013,896, US 5,252,814, US 5,335,485, or US 5,345,071 in this session; their characterizations rest on titles, citation metadata, third-party summaries, and the '346's own description of them. Specific paragraph-level pin cites for those six are missing.
2. The § 102(e) eligibility of US 5,335,485 (granted after the '346 filing date) depends on a U.S. filing date I could not verify.
3. The US 5,345,071 "by another" / incorporation-by-reference issue is genuine and could remove the single reference that supplies elements [A]+[B] — the linchpin of all three primary grounds. This is the most important factual question for the entire § 103 case.
4. Claim 12 of the printed patent reads "claim 11 pg,26 wherein" — a printing artifact preserved here as-is (consistent with the earlier instruction not to auto-correct the record); it does not affect the substance of the limitation as analyzed.

Recommended verification before relying on this analysis: pull the full texts and filing dates of the six references in item 1 from USPTO PatentCenter / Google Patents, and confirm the inventive-entity overlap for US 5,345,071 against US 08/241,354.