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. 20, 1979
Filed:
Jul. 22, 1977
Applicant:
Inventor:
Hans Wobking, Innsbruck, AT;
Assignee:
Vereinigte Metallwerke Ranshofen-Berndorf Aktiengesellschaft, Braunau am Inn/Ranshofen, AT;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25C / ;
U.S. Cl.
CPC ...
204108 ; 204 / ; 204D / ;
Abstract
A process for the electrolytic refining of metals, especially copper, in which the copper is deposited from an electrolyte on the cathode of an electrolytic cell which comprises periodically reversing the current with a forward pulse time of 2 to 9 seconds and a reverse pulse time of 0.1 to 0.45 seconds.