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. 22, 1980
Filed:
Sep. 01, 1978
Applicant:
Inventor:
David L Greenaway, Oberwil, CH;
Assignee:
LGZ Landis & Gyr Zug AG, Zug, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B42D / ;
U.S. Cl.
CPC ...
283-6 ; 283-7 ; 283 11 ; 283 17 ;
Abstract
There is disclosed a document comprising a flat support member of non-thermoplastic material at least partly coated with a thermoplastic coating, in which coating are embossed optical markings having a light-modifying relief structure, said markings representing information indicating the genuineness or identity of the document. There is also disclosed a process for producing such a document, and an embossing die for use in such a process.