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. 03, 1989
Filed:
Jun. 29, 1988
Applicant:
Inventors:
Assignee:
Bridgestone Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ; C08L / ; C08L / ;
U.S. Cl.
CPC ...
524254 ; 524495 ; 525293 ; 1522 / ;
Abstract
A pneumatic tire having improved heat resistance and gripping performance is obtained by using as a tread rubber a rubber composition containing particular amounts of specified p-phenylene diamine derivative and specified carbon black.