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:
Jul. 06, 1976
Applicant:
Inventor:
Hans-Dieter Beckey, Bonn, DT;
Assignee:
Varian MAT GmbH, , DT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313 15 ; 313363 ; 313359 ;
Abstract
A field emission ion source of the type employing a thin anode having an elongated surface utilizes local heating of the anode to prevent material from being adsorbed on the anode's surface. The anode may be a wire or a thin knife-edged metal strip through which an electrical current is passed to heat the anode.
Beckey, Hans-Dieter. (1977). Field emission ion source having heated anode (U.S. Patent No. 4054810). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4054810
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile