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. 21, 2009
Filed:
Jul. 29, 2004
Applicants:
Hyung Kyu Yoon, Peoria, IL (US);
Thomas E. Clements, Peoria, IL (US);
Daniel Patrick Vertenten, Aurora, IL (US);
David Anthony Cusac, East Peoria, IL (US);
Inventors:
Hyung Kyu Yoon, Peoria, IL (US);
Thomas E. Clements, Peoria, IL (US);
Daniel Patrick Vertenten, Aurora, IL (US);
David Anthony Cusac, East Peoria, IL (US);
Assignee:
Caterpillar Inc., Peoria, IL (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C23C 26/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of forming an oxide layer on a powder metal part includes subjecting the powder metal part to a steam oxidation process. An oxide layer is formed on the powder metal part. The oxide layer has a thickness greater than 7 microns.