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:
Jun. 18, 1985
Filed:
Dec. 14, 1981
Applicant:
Inventors:
Hans J Holbein, Munich, DE;
Thomas Maurer, Munich, DE;
Assignee:
GAO Gesellschaft fur Automation und Organisation mbH, Munich, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B42D / ; G01D / ; G01D / ;
U.S. Cl.
CPC ...
283 67 ; 346 / ; 3461351 ; 283100 ; 283114 ; 283 75 ;
Abstract
An identification card having information applied in the form of patterns, letters, numbers and/or images, formed by interruptions, in the homogeneity of different colored layer areas arranged superjacently on the identification card. The colored information can be produced by selectively removing the color layers by means of a controlled laser beam or by blurring or other chemical reactions induced by said beam. Thus identification cards can be produced having a high standard of security in spite of the simplicity of their production.