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. 13, 1989
Filed:
Dec. 02, 1987
Applicant:
Inventors:
Arie B Edelman, Heiloo, NL;
Jan B Kleijn, Krommenie, NL;
Maarten A de Haas, Heerhugowaard, NL;
Thomas M Hoogendoorn, Aerdenhout, NL;
Assignee:
Hoogovens Groep B.V., IJmuiden, NL;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21D / ;
U.S. Cl.
CPC ...
148-2 ; 148 / ; 148 / ; 148 / ; 204 373 ;
Abstract
Steel sheet manufactured from Al-killed continuous cast carbon-manganese steel and having a hardness in the range 57 to 73 HR30T is characterized by a content of 0.03 to 0.10% by weight C and 0.15 to 0.50% by weight Mn, and an amount Z in ppm of dissolved uncombined nitrogen given by
Edelman, Arie. (1989). Method for the manufacture of hard steel sheet from al-killed (U.S. Patent No. 4838955). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4838955
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile