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:
Apr. 24, 1990
Filed:
Jun. 30, 1988
Applicant:
Inventor:
Robert Stavitsky, Bronx, NY (US);
Assignee:
LeaRonal, Inc., Freeport, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C / ; C23C / ;
U.S. Cl.
CPC ...
106-126 ; 106-123 ;
Abstract
Electroless or autocatalytic gold plating solutions having increased stability through the use of a non-aqueous solvent, preferably ethylene glycol, in an amount of between 50 and 100% of the base solution. Also, the excess free cyanide content of this solution can be controlled at optimum levels by periodic additions of a strong inorganic oxidant such as sodium hypochlorite without adversely affecting the other solution components.