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. 05, 2016
Filed:
May. 16, 2014
Applicant:
Dr. Ing. H.c. F. Porsche Aktiengesellschaft, Stuttgart, DE;
Inventor:
Frank Haunstetter, Leonberg, DE;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
B05D 3/02 (2006.01); F01N 13/16 (2010.01); C25D 9/04 (2006.01); C25D 11/38 (2006.01); B05D 3/04 (2006.01); B05D 7/14 (2006.01); F01N 3/05 (2006.01); F01N 13/18 (2010.01);
U.S. Cl.
CPC ...
F01N 13/16 (2013.01); B05D 3/0254 (2013.01); B05D 3/0486 (2013.01); B05D 7/14 (2013.01); C25D 9/04 (2013.01); C25D 11/38 (2013.01); F01N 3/055 (2013.01); F01N 13/1805 (2013.01); Y10T 428/24322 (2015.01);
Abstract
A method is provided for protecting at least one metallic surface against discolorations under the action of heat. The method includes applying a lacquer to the metallic surfaces and then stoving the metallic surface while sealing the metallic surface against oxygen contact to form a permanently effective oxygen barrier.