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. 17, 1981
Filed:
Sep. 04, 1979
Applicant:
Inventors:
George M Waid, Burton, OH (US);
Anthony T Davenport, Shaker Heights, OH (US);
Assignee:
Republic Steel Corporation, Cleveland, OH (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
148 36 ; 7512 / ; 138177 ; 148 / ;
Abstract
A welded tubular steel product having a high ultimate tensile strength of at least 95 ksi and a relatively low yield strength in a range of from 55 to 80 ksi is made by alloying a plain carbon-manganese steel solely with chromium.