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.:
Date of Patent:
Jan. 03, 1989
Filed:
Feb. 02, 1987
Applicant:
Inventor:
Robert N Goldman, Honolulu, HI (US);
Assignee:
Light Signatures, Inc., Los Angeles, CA (US);
Primary Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
235380 ; 235449 ; 34082533 ;
Abstract
A verification system for cards or other devices with an anticounterfeit characteristic and an escort memory, wherein for lower or routine levels of security, the escort memory serves to confirm part of the anticounterfeit characteristic and for higher levels of security a central station memory is employed to confirm another part of the anticounterfeit characteristic. Distinction between levels of security is determined on the basis of time or other criteria imposed from the central station.