Invalidity dossier
US 5323907
Child resistant package assembly for dispensing pharmaceutical medications
Current assignee: Multi Comp Inc
Added 9/23/2026, 9:02:32 PM
Active provider: DeepSeek · deepseek-flash
Patent summary
Title, assignee, inventors, filing/issue dates, abstract, and a plain-language overview of the claims.
Patent Overview — US 5,323,907 A
Title: "Child resistant package assembly for dispensing pharmaceutical medications"
Key bibliographic data (from supplied source):
- Patent number: US 5,323,907 A
- Application number: US 08/031,657
- Inventor: John D. Kalvelage
- Original assignee / current assignee (as listed): Multi Comp Inc
- Priority date: 1992-06-23
- Filing date: 1993-03-15
- Publication (grant) date: 1994-06-28
- Anticipated expiration: 2012-06-23; status listed as "Expired – Lifetime"
Purpose: The patent addresses a recognized tension in pharmaceutical packaging: child-resistant packages are often difficult for adults—particularly elderly patients or those with limited dexterity—to open, risking that patients skip medication. The stated aim is a package that is child resistant yet accessible and user-friendly to adults, and that permits customized prescription packaging handled economically by a pharmacist.
Plain-language scope (from the described embodiments): The assembly has two main parts. (1) A blister package: a clear thermoformed plastic blister sheet (e.g., polyvinyl chloride or polyethylene terephthalate) with recesses holding capsules or tablets, covered by a lidding/backing sheet. (2) A surrounding molded plastic frame: two panels joined by a flexible integral hinge, folded face-to-face to sandwich the blister package. Both panels have correspondingly arranged apertures; the second panel's apertures partially obstruct those of the first, acting as a protective device that impedes unwanted removal of medication in child-resistant fashion. Features described include different panel configurations for capsules versus tablets, non-uniform blister thickness (thick on the press side, thin on the pinch side), locating bumps, an identifying alphanumeric grid, and optional score lines for separating individual blisters. Child-resistance involves successive actions (per the B65D2215/04 classification noted in the source).
Source: https://patents.google.com/patent/US5323907/en
What the excerpt does not establish: It does not provide the full claim text, the complete specification, or the drawings' details; it does not identify prior-art references or compare the invention to them; it does not address litigation, validity, enforceability, or the accuracy of the listed assignments (the source itself notes assignee/legal-status listings are assumptions, not legal conclusions). The omitted portion of the specification (noted in the source as excerpted) may contain additional details not summarized here.
Generated 10/1/2026, 9:41:01 PM
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Litigation summary
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PTAB challenges
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Assignment history
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Prior art
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Obviousness
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Extensions
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Derivative works
Defensive disclosure: derivative variations of each claim designed to render future incremental improvements obvious or non-novel.