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:
Jan. 29, 1985
Filed:
Jan. 18, 1983
Applicant:
Inventors:
Jacob Van Den Berg, Eindhoven, NL;
Johannes G Van Lent, Eindhoven, NL;
Francis B Strik, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03G / ;
U.S. Cl.
CPC ...
430 23 ; 430 24 ; 430 53 ; 430 55 ; 430942 ; 430 25 ;
Abstract
A method of making a colour display screen for a television display tube is disclosed. On the window portion of the tube an electron-absorbing layer is provided which is scanned by means of an electron beam via the shadow mask. The charge image on the layer is then developed xerographically. The layer is preferably photoconductive so as to be able to remove the charge remaining after the development by means of a uniform exposure.
Van Den Berg, Jacob. (1985). Method of manufacturing a colour television display tube and tube (U.S. Patent No. 4496641). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4496641
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile