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:
Oct. 10, 1978
Filed:
Dec. 01, 1975
Applicant:
Inventors:
Hans Kellerwessel, Aachen, DE;
Ernst Kausel, Cologne, DE;
Assignee:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22B / ;
U.S. Cl.
CPC ...
266 92 ; 266170 ;
Abstract
Improved method and apparatus for the precipitation of cement copper from a copper solution mixed with pieces of iron. The cement copper depositing on the iron pieces is loosened therefrom by means of constant movement of such pieces and then is separated and collected from the decopperized solution.