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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 5991411 B1

PDFFull Text
Date of Patent:
Nov. 23, 1999

Filed:

Oct. 08, 1996

Method and means for limiting adverse use of counterfeit credit cards,

Applicant:
Inventors:

James Harvey Kaufman, San Jose, CA (US);

Glenn Tavernia Sincerbox, San Jose, CA (US);

Assignee:

International Business Machines Corporation, Armonk, NY (US);

Attorneys:

Pintner; James C.

Tran; Khanh Q.

Primary Examiner:

Bernarr E Gregory

Int. Cl.
CPC ...
H04L / ; H04L / ; G06K / ; G07F / ;
U.S. Cl.
CPC ...
380 24 ; 380 23 ; 380 25 ; 380 49 ; 235379 ; 235380 ; 34082531 ; 34082534 ; 705 26 ; 705 35 ; 705 39 ; 705 44 ;
Abstract

A system for rejecting second and subsequent copies of an informationally-equivalent card or badge asserted into a client/server system by processing only those cards having transaction histories recorded thereon by comparison matching a history recorded in a central repository and then rewriting the history on the card and in the repository. The rewritten histories include the current transaction. Counterfeit cards, informationally equivalent to the original card prior to the transaction update of the original card, will be rejected when asserted into the system since their histories mismatch that recorded in the repository.

Find Patent Forward Citations

Kaufman, James. (1999). Method and means for limiting adverse use of counterfeit credit cards, (U.S. Patent No. 5991411). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5991411

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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