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:
Nov. 02, 1993
Filed:
Apr. 21, 1992
Applicant:
Inventor:
Mark T Fondrk, Villa Park, IL (US);
Assignee:
Zenith Electronics Corporation, Glenview, IL (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
3134 / ; 220 / ; 220 / ;
Abstract
A CRT funnel, especially useful for CRTs having flat face panels, has concave diagonal walls sections to reduce discontinuity stresses between the face panel and funnel in the evacuated CRT envelope, thereby increasing the CRT pressure strength.
Fondrk, Mark. (1993). Cri funnel with concave diagonals (U.S. Patent No. 5258688). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5258688
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile