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:
Feb. 24, 1987
Filed:
Oct. 15, 1985
Applicant:
Inventors:
Vladimir N Mackiw, Etobicoke, CA;
Alexander Nadezhdin, Edmonton, CA;
Donald R Weir, Fort Saskatchewan, CA;
Assignee:
Sherritt Gordon Mines Limited, Toronto, CA;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B22F / ;
U.S. Cl.
CPC ...
75 / ; 75 / ;
Abstract
A process for the production of fine copper powder with particles having a size less than about 5 micrometers, comprises providing an ammoniacal cuprous salt solution, and neutralizing ammonia in said solution with acid in a substantially oxygen-free environment to produce substantially oxygen-free fine spherical copper powder.