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. 12, 1982
Filed:
Dec. 21, 1979
Applicant:
Inventors:
Yutaka Okinaka, Madison, NJ (US);
Craig G Smith, North Plainfield, NJ (US);
Assignee:
Bell Telephone Laboratories, Incorporated, Murray Hill, NJ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25D / ; C25D / ; C25D / ; C25D / ;
U.S. Cl.
CPC ...
204 / ; 204 / ; 2042 / ;
Abstract
A particular type of electrode structure is described which is useful as a counter electrode in gold plating processes. The electrode surface comprises oxides of certain group eight elements and oxides of certain valve metals. A process for preparing the electrodes is also described. Such electrodes or anodes exhibit long life and reduced undesirable side reactions in the gold plating process. For example, consumption of buffer material is greatly reduced and formation of trivalent gold is reduced.