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:
Dec. 08, 1992
Filed:
Nov. 19, 1991
Applicant:
Inventors:
Edward C Couble, Brockton, MA (US);
Steven M Florio, Hopkinton, MA (US);
Richard F Staniunas, Northboro, MA (US);
Assignee:
Shipley Company Inc., Newton, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B05D / ; C23C / ;
U.S. Cl.
CPC ...
427436 ; 106-122 ; 106-125 ;
Abstract
A process for replenishing a tin-lead alloy displacement plating solution which comprises periodically adding complexing agent to the solution during use of the same to bring the total concentration of complexing agent to an amount sufficient to ensure adhesion of the deposit to its underlying substrate.