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. 23, 1981
Filed:
Apr. 05, 1979
Applicant:
Inventors:
Assignees:
Bridgestone Tire Co., Ltd., Tokyo, JP;
Ube Industries, Ltd., Ube, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60C / ; B60C / ; C08L / ;
U.S. Cl.
CPC ...
1522 / ; 1523 / ; 1523 / ; 152374 ; 152D / ; 260-5 ; 260 4232 ; 260 4247 ; 260762 ; 525236 ;
Abstract
A pneumatic tire having a cap/base structured tread and having an improved resistance against heat build-up and an improved wear resistance at the end of the use can be obtained by forming a tread base rubber of the tire with a vulcanizate of a rubber composition comprising specifically limited amounts of short fibers of syndiotactic-1,2-polybutadiene having a maximum diameter of not more than 10.mu. and an average diameter of less than 1.mu., carbon black, sulfur and natural or synthetic rubber.
Ogawa, Masaki. (1981). Pneumatic tire having an improved resistance against heat build-up (U.S. Patent No. 4274462). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4274462
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile