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:
Aug. 19, 1986
Filed:
Jun. 20, 1985
Applicant:
Inventors:
Michael J Miller, Towanda, PA (US);
Martin B MacInnis, Towanda, PA (US);
Assignee:
GTE Products Corporation, Stamford, CT (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B22F / ;
U.S. Cl.
CPC ...
419 39 ; 75 82 ; 419 38 ; 419 58 ; 419 66 ;
Abstract
An improvement is disclosed in a process for recovery of cobalt from cobalt bearing material to obtain fine cobalt metal powder of high purity, the improvement being mechanically compacting the powder into a billet and sintering the billet in a hydrogen atmosphere at a sufficient temperature for a sufficient time to densify the billet and form a high purity cobalt article having an oxygen content of no greater than about 500 weight parts per million.