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:
Mar. 17, 1992
Filed:
Jul. 27, 1990
Applicant:
Inventors:
John F Breedis, Trumbull, CT (US);
George J Muench, Hamden, CT (US);
Deepak Mahulikar, Madison, CT (US);
Assignee:
Olin Corporation, New Haven, CT (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C23C / ;
U.S. Cl.
CPC ...
148 132 ; 148 166 ; 428671 ;
Abstract
A composite copper alloy having a modified surface is provided. An element or combination of elements both soluble in copper and reactive with nitrogen are cast with copper or a copper alloy forming a solid state solution. The alloy is reacted with a nitride former to modify the surface. A continuous surface film is formed by heating in a nitrogen containing gas. A dispersion of nitride precipitate in a copper matrix is formed by implanting nitrogen ions.