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.

Date of Patent:
Jun. 12, 2001

Filed:

Jul. 26, 1996
Applicant:
Inventors:

Georg Hartmann, Köln, DE;

Gunnar Weikert, Düsseldorf, DE;

Patrick Horster, Frechen, DE;

Assignee:

Bayer Aktiengesellschaft, Leverkusen, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06K 5/00 ;
U.S. Cl.
CPC ...
G06K 5/00 ;
Abstract

A description is given of a method of extending the period of validity of smart cards, without the cards having to be surrendered by their owner. For this purpose, use is made of reading/writing devices which are installed near smart card users and, by extension passwords sent to the owner by a central issuing agency, extend the date of validity of the smart card.


Find Patent Forward Citations

Hartmann, Georg. (2001). Unit comprising data memory card and reading/writing device (U.S. Patent No. 6244506). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/6244506

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

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