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. 15, 1983
Filed:
Jun. 01, 1981
Applicant:
Inventors:
Samuel Natansohn, Sharon, MA (US);
Gary Czupryna, Salem, MA (US);
Assignee:
GTE Laboratories Incorporated, Waltham, MA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25C / ; C25C / ;
U.S. Cl.
CPC ...
204109 ; 204112 ; 7510 / ;
Abstract
A process for cleanly separating coinage metals from alloys of coinage metals and tungsten comprises electrowinning the coinage metal from an electrolyte solution which is contacted with an ion exchange resin to selectively remove the tungsten.