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. 19, 1993
Filed:
Nov. 25, 1991
Applicant:
Inventors:
Masayuki Ohashi, Kodaira, JP;
Hiroshi Yamada, Kodaira, JP;
Assignee:
Bridgestone Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08K / ;
U.S. Cl.
CPC ...
524495 ; 524496 ;
Abstract
A tread rubber composition for heavy duty pneumatic tire comprises a particular amount of a particular carbon black satisfying CTAB of 130-160 m.sup.2 /g, DBP of 90-120 m/100 g and Dm of not more than 210 .ANG., based on 100 parts by weight of at least one rubber component.