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:
Feb. 14, 2006
Filed:
Nov. 13, 2002
Applicants:
Yixiong Liu, Greensburg, PA (US);
Donald A. Botbyl, Greensburg, PA (US);
George P. Grab, Greensburg, PA (US);
Mark S. Greenfield, Greensburg, PA (US);
Inventors:
Yixiong Liu, Greensburg, PA (US);
Donald A. Botbyl, Greensburg, PA (US);
George P. Grab, Greensburg, PA (US);
Mark S. Greenfield, Greensburg, PA (US);
Assignee:
Kennametal Inc., Latrobe, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 9/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A coated cemented carbide tool, and a method for making the same, wherein the as-sintered substrate is formed by sintering in an atmosphere having at least a partial pressure and for a part of the time a nitrogen partial pressure.