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:
Jul. 01, 1997
Filed:
Dec. 22, 1995
Applicant:
Inventors:
Assignee:
Imphy S.A., Puteaux, FR;
Primary Examiner:
Int. Cl.
CPC ...
G03F / ;
U.S. Cl.
CPC ...
430-5 ; 430 23 ; 445 36 ;
Abstract
Shadow mask and process for manufacturing a shadow mask made of an iron/nickel alloy in which: a foil perforated with holes is provided, the foil is subjected to a heat treatment in order to obtain grains whose size, as defined by the ASTM standard, is greater than or equal to ASTM 7, the foil is formed in order to give it the shape of a shadow mask.