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:
Sep. 09, 1980
Filed:
Aug. 25, 1972
Applicant:
Inventor:
Joseph A Beckman, Akron, OH (US);
Assignee:
The Firestone Tire & Rubber Company, Akron, OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09C / ; C09C / ;
U.S. Cl.
CPC ...
106307 ; 260 4214 ; 423449 ;
Abstract
Char obtained by the destructive distillation of scrap rubber vulcanizate is ground in a fluid-energy mill. The resulting black powder, with or without coating with oil, is used as a reinforcing agent for vulcanized rubbers.
Beckman, Joseph. (1980). Rubber-reinforcing blacks (U.S. Patent No. 4221608). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4221608
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile