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:
Jun. 07, 1983
Filed:
Nov. 26, 1980
Applicant:
Inventors:
Audley J Farmer, Kent, WA (US);
Robert B Moffett, Seattle, WA (US);
Thomas R Carney, Seattle, WA (US);
Assignee:
Earle M. Jorgensen Co., Seattle, WA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21C / ; C21C / ;
U.S. Cl.
CPC ...
75 51 ; 75 59 ; 75 60 ;
Abstract
A method of making a nonmagnetic, austenitic, manganese-chromium-nickel-nitrogen stainless steel uses intermediate addition of ferroalloys and novel mixtures of oxygen and nitrogen to maintain the temperature of the melt below about 3150.degree. F. (1732.degree. C.). The method improves on the economics of making specialty steels by reducing the cost of raw materials and refractories.
Farmer, Audley. (1983). Process for making nonmagnetic steel (U.S. Patent No. 4386957). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4386957
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile