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. 02, 1996
Filed:
Aug. 18, 1994
Kiyoshi Ochiai, Kobe, JP;
Kenichi Fujiwara, Miki, JP;
Sumitomo Rubber Industries, Ltd., Hyogo, JP;
Abstract
A pneumatic tire has a tread which is provided with main grooves extending continually in the circumferential direction and lateral grooves crossing between the adjoining main grooves and having a groove depth DB of 0.6 to 0.95 times the mean DM of groove depths DA1, DA2 of the adjoining main grooves. The lateral groove is composed of, on a section orthogonal to a groove center line, an upper portion having an opening on the tread surface, a lower portion having a groove bottom and a constricted waist portion consecutive to the upper and lower portions and having the narrowest width WS of its lateral groove. And the tire is satisfied with the following relation;