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:
Oct. 18, 1977
Filed:
May. 08, 1975
Applicant:
Inventor:
Theodorus Maria Schoenmakers, Eindhoven, NL;
Assignee:
U.S. Philips Corporation, New York, NY (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313217 ; 313209 ; 313210 ; 3132313 ;
Abstract
A gas discharge electron gun for generating an electron beam by secondary emission from an active surface of a cathode which is surrounded by a cathode sleeve coaxially projecting towards an open end of a tubular anode.
Schoenmakers, Theodorus. (1977). Gas discharge electron gun for generating an electron beam by means of a (U.S. Patent No. 4004172). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4004172
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile