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.

Date of Patent:
Dec. 20, 1994

Filed:

Oct. 01, 1993
Applicant:
Inventors:

Fred Pearlstein, Philadelphia, PA (US);

Vinod S Agarwala, Warminster, PA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C23C / ;
U.S. Cl.
CPC ...
205203 ; 148276 ; 148267 ; 427343 ; 205201 ;
Abstract

Corrosion resistant seal-coatings are formed on anodized aluminum by immeon in aqueous solutions containing trivalent chromic compounds with an alkali added near or slightly beyond the precipitation of insoluble basic compounds. Trivalent chromium seals formed on the anodized aluminum when tested in 5% NaCl salt spray chamber showed improved corrosion resistance. After a post-treatment in a peroxide or permanganate solution, the corrosion resistance for the anodized aluminum showed even greater improvement in the salt chamber.


Find Patent Forward Citations

Pearlstein, Fred. (1994). Trivalent chromium solutions for sealing anodized aluminum (U.S. Patent No. 5374347). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5374347

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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