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:
May. 19, 1987
Filed:
May. 15, 1986
Applicant:
Inventors:
Howard M Pielet, Munster, IN (US);
Nassos A Lazaridis, Dyer, IN (US);
Robert D O'Neil, Crown Point, IN (US);
Assignee:
Inland Steel Company, Chicago, IL (US);
Primary Examiner:
Int. Cl.
CPC ...
C22C / ; C22B / ;
U.S. Cl.
CPC ...
420 85 ; 75 96 ;
Abstract
Bismuth is added to molten steel in a ladle, and the molten steel is covered with a slag layer sufficiently thick to prevent a decrease in the bismuth content during the time the molten steel is in the ladle.