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:
Nov. 24, 1987
Filed:
Sep. 29, 1986
Applicant:
Inventors:
James L Kellie, Sheffield, GB;
Andrew J Cowell, Sheffield, GB;
Assignee:
London & Scandinavian Metallurgical Co. Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22B / ; B22F / ;
U.S. Cl.
CPC ...
75 76 ; 75251 ; 75255 ; 420469 ;
Abstract
The invention provides a grain refinement method for copper-based metals, which method can be applied to a range of different types of such metals. In accordance with the method, one arranges that a melt of the metal to be grain refined contains each of the following components:
Kellie, James. (1987). Grain refining metals (U.S. Patent No. 4708739). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4708739
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile