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:
Sep. 24, 1985
Filed:
Aug. 31, 1983
Applicant:
Inventors:
Vincent F D'Agostino, Huntington, NY (US);
Joseph Y Lee, Lake Grove, NY (US);
Stephen Zapisek, Huntington Station, NY (US);
George Schore, Great Neck, NY (US);
Assignee:
RAI Research Corporation, Hauppauge, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25C / ; C25C / ; C25C / ; C25C / ;
U.S. Cl.
CPC ...
2041 / ; 204106 ; 204109 ; 204110 ; 204116 ; 20415917 ; 210670 ; 210684 ; 423 14 ; 423 22 ; 423 24 ; 423100 ; 423112 ; 423D / ;
Abstract
A method is described for precious metal recovery from acidic precious metal-cyanide solutions by means of a weakly-basic anion-exchange material comprising a polymeric felt incorporating radiation-grafted pyridinyl functional groups.