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:
Sep. 29, 2009
Filed:
Oct. 31, 2005
Applicants:
Niklas Ahlen, Fagersta, SE;
Rolf Olofsson, Fagersta, SE;
Inventors:
Niklas Ahlen, Fagersta, SE;
Rolf Olofsson, Fagersta, SE;
Assignee:
Seco Tools AB, Fagersta, SE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 1/05 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a method of making cemented carbides having surfaces free free of detrimental binder phase layer. This is achieved by the inclusion of controlled amounts of carbonitride in the carbide composition. The invention also relates to the cemented carbides so formed.