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:
Oct. 26, 1976
Filed:
Jul. 11, 1975
Applicant:
Inventor:
Tsuyoshi Kawano, Kisaragu, JA;
Assignee:
Nippon Steel Corporation, Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D / ;
U.S. Cl.
CPC ...
148 / ; 148 36 ;
Abstract
A cold rolled steel sheet having excellent cold workability comprising not more than 0.10% of carbon, not more than 0.10% of silicon, not more than 0.50% of manganese, not more than 0.0080% of nitrogen, 0.003-0.080% of acid-soluble aluminum, 0.0020-0.0050% of boron, the balance being iron and unavoidable impurities.