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:
Apr. 26, 1988
Filed:
Apr. 11, 1986
Hiroshi Ogawa, Higashiyamato, JP;
Kenichi Motomura, Higashiyamato, JP;
Yukimasa Yamada, Kodaira, JP;
Mamoru Mamada, Kodaira, JP;
Hikaru Tansei, Kodaira, JP;
Bridgestone Corporation, Tokyo, JP;
Abstract
A pneumatic tire comprising a tread divided into at least three ribs by at least two main wide grooves substantially extending in a circumferential direction of the tire, wherein a shoulder rib of the ribs arranged at an outermost end portion of the tread is divided in an axial direction parallel to an axis of rotation of the tire into at least two rib portions; and between two adjacent rib portions of the rib portions, an inner end of an outer surface of an outer rib portion is connected through an outer surface of a circumferentially extending sloped portion to an outer end of an outer surface of an inner rib portion so that the outer end of the outer surface of the outer rib portion is lower than the inner end of the outer surface of the inner rib portion.