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:
Nov. 15, 1988
Filed:
Apr. 29, 1986
Applicant:
Inventors:
Mitsuhiro Okumura, Amagasaki, JP;
Eizo Naya, Amagasaki, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C22C / ; C22C / ;
U.S. Cl.
CPC ...
420428 ; 420495 ; 200266 ;
Abstract
A contact material for a vacuum circuit breaker of excellent current breaking property and voltage withstand capability can be made from an alloy composed of copper and boride of tantalum, or an alloy composed of copper, boride of tantalum and titanium, or an alloy composed of copper, chromium, and boride of tantalum.
Okumura, Mitsuhiro. (1988). Contact material for vacuum circuit breaker (U.S. Patent No. 4784829). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4784829
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile