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. 06, 1979
Filed:
Jun. 24, 1977
Applicant:
Inventors:
Robert P Stone, Lancaster, PA (US);
Albert M Morrell, Lancaster, PA (US);
Assignee:
RCA Corporation, New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313403 ; 313408 ;
Abstract
The tube includes an improved shadow mask contoured with step risers therein separating active portions of the mask. The risers are aligned with electron beam paths within the tube.
Stone, Robert. (1979). Cathode-ray tube having a stepped shadow mask (U.S. Patent No. 4173729). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4173729
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile