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. 23, 1993
Filed:
Mar. 05, 1991
Applicant:
Inventors:
Robert N O'Brien, Victoria, CA;
Thomas D McEwan, Victoria, CA;
Assignee:
Envirochip Technologies Ltd., Victoria, CA;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25C / ;
U.S. Cl.
CPC ...
204106 ; 204108 ; 423 32 ; 423 33 ; 423 36 ; 423 47 ; 423 87 ; 423101 ; 423143 ; 423145 ; 4235 / ;
Abstract
A process for recovery of metal from a feedstock comprising copper is provided. The process comprises the steps of: