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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.:

US 4300070 B1

PDFFull Text
Date of Patent:
Nov. 10, 1981

Filed:

Jun. 11, 1979

Cathode-ray tube screen border improvement

Applicant:
Inventors:

Richard H Godfrey, Lancaster, PA (US);

James O Peck, Lancaster, PA (US);

Assignee:

RCA Corporation, New York, NY (US);

Attorneys:

Whitacre; Eugene M.

Bruestle; Glenn H.

Irlbeck; Dennis H.

Primary Examiner:

Palmer C Demeo

Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
313403 ; 313408 ;
Abstract

The present invention provides an improved cathode-ray tube of a type having a cathodoluminescent line screen and slit apertured mask mounted within the tube in spaced relation to the screen, wherein the slits in the mask are aligned in substantially parallel columns, each column containing a plurality of slits which are vertically separated by web portions of the mask. In the tube, some of the end portions of the aperture columns are modified to produce a more asthetically pleasing screen border.

Find Patent Forward Citations

Godfrey, Richard. (1981). Cathode-ray tube screen border improvement (U.S. Patent No. 4300070). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4300070

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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