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:
Sep. 19, 1978
Filed:
Feb. 09, 1978
Applicant:
Inventors:
Jos Patrie, Grenoble, FR;
Gabriel Colombier, Saint Egreve, FR;
Assignee:
Societe de Vente de l'Aluminium Pechiney, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25D / ; C25D / ;
U.S. Cl.
CPC ...
204 / ; 204 / ;
Abstract
Electrolytic coloring process for the surface of aluminum or aluminum alloy objects such as designed for the interior or exterior of buildings or even simpler objects such as ski poles, etc., characterized in that the object, without having been previously anodized, is directly subjected to the action of an alternating current at a voltage below the anodization voltage of the aluminum in an aqueous bath consisting of sulfuric acid and boric acid or only sulfamic acid, at least one salt of copper, tin, silver, nickel or gold; the resultant colored film is then coated with a colorless varnish.