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:
May. 27, 1980
Filed:
Dec. 09, 1977
Applicant:
Inventor:
Horst Schreiner, Nuremberg, DE;
Assignee:
Siemens Aktiengesellschaft, Berlin and Munich, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C / ; C22C / ; B22F / ;
U.S. Cl.
CPC ...
75234 ; 200265 ; 200266 ; 252514 ; 428564 ; 428565 ; 428568 ; 428929 ;
Abstract
A sintered contact material of silver and at least two embedded metal oxides for use in electrical contacts in which the metal oxides are distributed alternatingly in the silver in different microscopic zones of the sintered contact material.