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:
Mar. 07, 1989
Filed:
Nov. 05, 1986
Applicant:
Inventors:
Jean P Gloton, Aix en Provence, FR;
Philippe Peres, Gardanne, FR;
Assignee:
Eurotechnique, Rousset, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G06K / ;
U.S. Cl.
CPC ...
235487 ; 235492 ;
Abstract
An electronic card which can be reused a large number of times incorporates a semiconductor circuit provided with an area which is erasable by means of electromagnetic radiation within the ultraviolet range of wavelengths. The externally-emitted ultraviolet radiation applied to the semiconductor circuit via a card recess passes through a quartz window and impinges on the erasable area.