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:
Sep. 08, 1981
Filed:
Jun. 11, 1979
Applicant:
Inventors:
Jean E Picquendar, Paris, FR;
Michel Marchal, Paris, FR;
Jean C Dubois, Paris, FR;
Eugene Duda, Paris, FR;
Assignee:
Thomson-CSF, Paris, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03C / ;
U.S. Cl.
CPC ...
430297 ; 156643 ; 156659 ; 156664 ; 346 / ; 427 431 ; 427 531 ; 427271 ; 430-5 ; 430296 ; 430323 ; 430325 ; 430326 ; 430394 ; 430502 ; 430945 ;
Abstract
An improved process for forming an embossed pattern through the use of a writing concentrated beam opening holes in a film capable of undergoing residue free evaporation. A layer of photoresist is overlayed with the film and upon being exposed and processed the layer supplies the prospective embossed pattern.