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:
Jan. 10, 2017
Filed:
Sep. 11, 2012
Applicants:
Taixiang Jiang, Ottawa, CA;
Xianyao LI, Ottawa, CA;
Hieu Cong Truong, Ottawa, CA;
Inventors:
Assignee:
Royal Canadian Mint, Ontario, CA;
Primary Examiner:
Int. Cl.
CPC ...
C23C 18/16 (2006.01); C25D 5/44 (2006.01); C23C 28/00 (2006.01); C25D 5/14 (2006.01); C25D 5/50 (2006.01); C23C 18/54 (2006.01); A44C 21/00 (2006.01); B32B 15/01 (2006.01); C25D 17/16 (2006.01);
U.S. Cl.
CPC ...
C23C 18/1653 (2013.01); A44C 21/00 (2013.01); B32B 15/017 (2013.01); C23C 18/54 (2013.01); C23C 28/321 (2013.01); C23C 28/322 (2013.01); C23C 28/345 (2013.01); C25D 5/14 (2013.01); C25D 5/44 (2013.01); C25D 5/50 (2013.01); C25D 17/16 (2013.01); Y10T 428/12736 (2015.01);
Abstract
A method of treating aluminum or aluminum alloy includes providing an aluminum or aluminum alloy substrate; depositing a first zincating layer on the substrate by zincate immersion; stripping off the first zincating layer; depositing a second zincating layer on the substrate by zincate immersion; stripping off the second zincating layer; and depositing a third zincating layer on the substrate by zincate immersion.