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:
Dec. 12, 1989
Filed:
Jul. 31, 1987
Applicant:
Inventors:
Assignee:
Amchem Products, Inc., Ambler, PA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C11D / ;
U.S. Cl.
CPC ...
252142 ; 252 792 ; 252 794 ; 134-3 ; 134 41 ; 156665 ; 148 23 ; 148 24 ; 423132 ; 423556 ;
Abstract
Chromium free cleaning compositions for cleaning aluminum and aluminum alloy surfaces comprising