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:
Oct. 24, 1978
Filed:
Aug. 11, 1977
Applicant:
Inventors:
Barbara Jean Chapman, Chinley, by Stockport, GB;
Donald Hatch, Stockport, GB;
Assignee:
Ferodo Limited, Manchester, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C22C / ;
U.S. Cl.
CPC ...
7513 / ; 7512 / ; 148 35 ;
Abstract
The friction characteristics and wear rate of grey cast iron are controlled within pre-determined limits by controlling the content in the cast iron of an element which is capable of forming in the cast iron hard high melting discrete particles.
Chapman, Barbara. (1978). Method of producing grey cast iron brake rotors with uniform friction (U.S. Patent No. 4121925). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4121925
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile