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:
Jun. 16, 1992
Filed:
Jul. 05, 1990
Applicant:
Inventors:
Kenneth A Dykstra, Napa, CA (US);
Frank A Muller, West Los Angeles, CA (US);
Assignee:
Elf Atochem North America, Inc., Philadelphia, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C / ;
U.S. Cl.
CPC ...
148247 ; 148251 ;
Abstract
Promotion of paint adhesion and corrosion resistance on the surface of a non-ferrous metal such as aluminum by contact with an aqueous acidic solution containing an anionic polyacrylic/polyacrylamide copolymer, ammonium zirconium fluoride, nitric acid, and water.