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:
Aug. 19, 1986
Filed:
Apr. 03, 1985
Applicant:
Inventor:
Matthew S Brennesholtz, Waterloo, NY (US);
Assignee:
North American Philips Consumer Electronics Corp., New York, NY (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
313461 ; 313470 ; 358 10 ;
Abstract
By adjusting the exposure dosages for the three primary color phosphors in the photolithographic process used to produce color CRTs for color television, standard whites of desired color temperatures are obtained. The aperture mask used in the photolithographic process is then discarded, and the CRT is operated as a monochrome tube in a standard receiver. Stable, rugged and portable color references are thus produced.
Brennesholtz, Matthew. (1986). Monochrome cathode ray tube for use as a color reference (U.S. Patent No. 4607188). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4607188
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile