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. 16, 1979
Filed:
Feb. 24, 1978
Applicant:
Inventors:
Hakon Harang, Gjettum, NO;
Karl Widding, Oslo, NO;
Knut A Andreassen, Porsgrunn, NO;
Johan B Holte, Blommenholm, NO;
Assignee:
Norsk Hydro a.s., , NO;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25D / ; C25D / ;
U.S. Cl.
CPC ...
204 34 ; 204 / ; 204 / ; 204 49 ; 204129 ; 2042 / ; 204293 ;
Abstract
Improved active cathodes, prepared by cleaning and etching with nitric acid and activated by a galvanic coating in a bath containing a nickel salt and sulphur liberating component, are provided. The improvement resides in controlled etching and activation conditions.