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:
Feb. 23, 1982
Filed:
Apr. 14, 1980
Applicant:
Inventor:
Kenneth Speigel, Seneca Falls, NY (US);
Assignee:
North American Philips Consumer Electronics Corp., New York, NY (US);
Primary Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
29 2518 ; 29 2516 ;
Abstract
Critical spacings between the cathode and grid of an electron gun structure are enabled by a cathode structure including a removable spacer, such structure produced by first forming a layer of potentially electron emissive material on the cathode, then forming a solvent drop on the layer, and contacting the drop with a spacer to adhere the spacer to the layer.