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:
Mar. 27, 2007
Filed:
Sep. 29, 2003
Applicants:
Leonid C Lev, West Bloomfield, MI (US);
Yang T Cheng, Rochester Hills, MI (US);
Michael J Lukitsch, Port Huron, MI (US);
Anita M Weiner, West Bloomfield, MI (US);
Inventors:
Leonid C Lev, West Bloomfield, MI (US);
Yang T Cheng, Rochester Hills, MI (US);
Michael J Lukitsch, Port Huron, MI (US);
Anita M Weiner, West Bloomfield, MI (US);
Assignee:
General Motors Corporation, Detroit, MI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G11B 5/64 (2006.01);
U.S. Cl.
CPC ...
Abstract
A diamond coated cutting tool is disclosed having a either steel or cemented carbide substrate. The interior layer disposed between the diamond coating and the substrate inhibits the diffusion of carbon and other species.