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:
Oct. 11, 1977
Filed:
Aug. 25, 1976
Applicant:
Inventor:
John C Crowther, Stourbridge, EN;
Assignee:
Albright & Wilson Limited, Warley, EN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25D / ;
U.S. Cl.
CPC ...
204 51 ;
Abstract
In trivalent chromium electroplating baths of the type which comprise an aqueous solution of a complex of trivalent chromium with a carboxylic acid such as a glycolic acid and a halide such as a chloride, the invention provides an improvement by adding ammonia to the baths in a proportion of at least 0.05 moles per liter, thereby obtaining substantially improved covering power.