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. 17, 1981
Filed:
Aug. 22, 1978
Applicant:
Inventors:
David A Chatfield, Coraopolis, PA (US);
Joseph F Rzepka, Weirton, WV (US);
Alan C Preble, Bradford Woods, PA (US);
Assignee:
National Steel Corporation, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
148120 ; 148 / ; 148 / ;
Abstract
A method for producing fully processed, non-silicon containing, low-carbon electrical steel without post-anneal deformation by continuously annealing a steel strip having a carbon content less than 0.02% at a temperature within the range of 1350.degree. F. to 1550.degree. F.