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:
Dec. 20, 1994
Filed:
Aug. 09, 1993
Applicant:
Inventors:
Assignee:
Bridgestone Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B60C / ;
U.S. Cl.
CPC ...
152454 ; 152523 ;
Abstract
A pneumatic radial tire comprises a pair of bead portions, a pair of sidewall portion extending outward from the bead portions in radial direction, and a tread portion between the sidewall portions. In this tire, the sidewall portion ranging from a separation point of the tire from a rim to a tread end is equally divided into three regions, and at least one annular recess extending circumferentially of the tire is formed on an outer surface of each of these regions in the sidewall portion so that a maximum depth of the annular recess is 0.3 times or more of an original rubber gauge at a position corresponding to a deepest point of the annular recess.