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:
Apr. 01, 1997
Filed:
May. 08, 1996
Applicant:
Inventors:
Albert L Askin, Lower Burrell, PA (US);
Paul B Schultz, Murrysville, PA (US);
Daniel L Serafin, Wexford, PA (US);
Assignee:
Aluminum Company of America, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25F / ; C23F / ;
U.S. Cl.
CPC ...
205153 ; 205213 ; 205680 ; 205682 ; 205704 ; 252 792 ;
Abstract
Aluminum alloy articles are electrobrightened in an acidic solution containing phosphoric acid, water, and suspended mineral particles. The solution preferably also contains sulfuric acid. Aluminum alloy sheet electrobrightened in the solution has a less directional appearance when the suspended mineral particles are present.