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:
Nov. 04, 2008
Filed:
Apr. 16, 2002
Applicants:
Jean Beguinot, Le Creusot, FR;
Dominique Viale, Marmagne, FR;
Inventors:
Jean Beguinot, Le Creusot, FR;
Dominique Viale, Marmagne, FR;
Assignee:
USINOR, Puteaux, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C 38/22 (2006.01); C22C 38/28 (2006.01); C22C 38/24 (2006.01); C22C 38/04 (2006.01); C21D 8/00 (2006.01); C21D 7/13 (2006.01);
U.S. Cl.
CPC ...
Abstract
The invention relates to a tool steel, the composition of which comprises (the percentages being expressed in % by weight): the balance of the composition consisting of iron and impurities resulting from the smelting, it being furthermore understood that: 2.5×10%≦(Ti+½Zr)×N, to a process for manufacturing parts made in this steel and to the parts obtained.