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:
Feb. 04, 1992
Filed:
Dec. 28, 1989
Applicant:
Inventors:
Raymond G Capek, Elmhurst, IL (US);
Siegfried M Greiner, Crystal Lake, IL (US);
Robert F Hutton, Buffalo Grove, IL (US);
Assignee:
Zenith Electronics Corporation, Glenview, IL (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
313407 ; 313408 ;
Abstract
A tension mask color CRT has a mask support structure so composed, configured and arranged as to create an accurately controllable and widely variable compressive strain in prescribed critical areas of the faceplate inner surface which strengthens the bulb.