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:
Jan. 06, 1998
Filed:
Mar. 27, 1996
Applicant:
Inventors:
James E Oxley, New Haven, CT (US);
Raymond J Smialek, Cheshire, CT (US);
Ronald A Putt, Marietta, GA (US);
Assignee:
Oxley Research, Inc., New Haven, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25B / ;
U.S. Cl.
CPC ...
205345 ; 205582 ; 205586 ; 204269 ; 204275 ;
Abstract
The present invention relates to an apparatus and a process for regenerating a used etchant solution, which solution contains a metal in divalent form. The apparatus includes a tank which is originally supplied with the etchant solution; a first electrolytic cell for converting solution from the tank to a solution containing a high fraction of a monovalent form of the metal; and a second electrolytic tank for plating metal from the solution containing a high fraction of the monovalent form of the metal. The details of the process of the present invention are set forth in the disclosure.