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:
Feb. 04, 1992
Filed:
Jun. 27, 1989
Applicant:
Inventors:
Jean P Mollet, La Celle Saint Cloud, FR;
Rene Rose, Voisin le Bretonneux, FR;
Assignee:
Schlumberger Industries, Montrouge, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K / ; G06K / ;
U.S. Cl.
CPC ...
235492 ; 235375 ;
Abstract
A memory card which does not utilize a semiconductor chip to store information. A plurality of discrete electrical components, such as fuses, is provided in the card which has the same shape and the same external contact tabs as a standard electronic memory card with a semiconductor chip. Information is written in the memory card by selectively transforming an initial electrical conduction state of the fuses into another, irreversible electrical conduction state which can be read by suitable apparatus.