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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.:

US 4139377 B1

PDFFull Text
Date of Patent:
Feb. 13, 1979

Filed:

Dec. 30, 1976

Ferritic chrome steels of high notched bar impact strength and method of

Applicant:
Inventors:

Sigvard Bergh, Stockholm, SE;

Goran Gemmel, Torshalla, SE;

Christer Aslund, Torshalla, SE;

Assignee:

Granges Nyby AB, , SE;

Attorney:

Craig & Antonelli

Primary Examiner:

Brooks H Hunt

Int. Cl.
CPC ...
B22F / ;
U.S. Cl.
CPC ...
75243 ; 75200 ; 75246 ; 7512 / ; 7512 / ; 7512 / ; 7512 / ; 7512 / ; 7512 / ; 7512 / ; 7512 / ; 7512 / ; 7512 / ; 75 / ;
Abstract

A method for producing stabilized ferritic stainless chrome steels which are distinguished in the welded state by high notched bar impact strength, wherein in powder-metallurginal manner by atomizing melts of the said chrome steels under argon a powder is produced which is pressed and agglomerated in known manner and that the pressed bodies are finally brought by hot or cold working into the desired semi-finished product form, preferably sheet form.

Find Patent Forward Citations

Bergh, Sigvard. (1979). Ferritic chrome steels of high notched bar impact strength and method of (U.S. Patent No. 4139377). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4139377

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