Invalidity dossier
US 5420606
Instant electronic coupon verification system
Current assignee: Klever Marketing Inc
Added 9/23/2026, 11:40:54 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 — US5420606A
Title: Instant electronic coupon verification system
Patent number: US5420606A | Application number: US08/123,192
Inventors: Paul G. Begum; Mark A. Geiger
Assignee of record (as supplied): Original assignee KLEVER-KART Inc (also styled KLEVER-KART, INC.); current assignee listed as Klever Marketing Inc. A later reassignment entry (2009-09-28) records Klever-Kart, Inc. to Klever Marketing, Inc.
Key dates: Priority/filing date 1993-09-20; publication/grant date 1995-05-30; anticipated expiration 2013-09-20; status "Expired - Lifetime."
Purpose: The invention "relates to an electronic paperless couponing system that allows an in-store, electronic coupon to be issued and redeemed without the necessity of putting the coupon on paper or other tangible medium." It addresses coupon fraud/manipulation by correlating a displayed redemption coupon with an actual purchase: "It would be extremely desirable... if a redemption coupon presented to a potential purchaser was directly correlated with the purchase of an item that is the subject of the coupon."
Plain-language scope (from the supplied excerpt): A communication unit with a display screen shows a graphic promotional coupon; a user control lets the shopper select the displayed coupon; a transmission circuit communicates the selection at checkout so the discount is applied when the subject item is purchased. The system uses standard bar code data and product identification numbers, coordinating coupon issuance with product sales accounting and existing store/manufacturer accounting systems. Coupon selection and purchased item are recorded to provide an audit trail confirming the promotion was reviewed and the discounted item purchased. It may be combined with, or independent of, the point-of-purchase promotional system of the referenced application "Automated Shopping Cart Handle," U.S. Ser. No. 08/090,285, filed Jul. 12, 1993.
What the excerpt does not establish: It does not supply the claims, full specification, or drawings; the complete definition of claim scope; or the full text of the incorporated application. It states no findings on validity or prior art.
Source: https://patents.google.com/patent/[US5420606](/patent/US5420606)/en
Generated 10/1/2026, 9:32:29 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
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