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. 27, 2009
Filed:
Nov. 23, 2005
Takehiko Murata, Kobe, JP;
Takehiko Murata, Kobe, JP;
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Abstract
A pneumatic tire is provided with a pair of circumferential grooves () arranged in both sides of a tire equator (C), and a plurality of oblique grooves () having a steep decline portion () extending to an outer side in a tire axial direction at an angle (q) between 15 and 45 degree with respect to a tire circumferential direction from a position near the circumferential groove (), in a tread surface (). A land portion (B) surrounded by the circumferential groove () and the steep decline portion () has an acute corner portion () and an obtuse corner portion (), each being formed between the circumferential groove () and the steep decline portion (). An outer groove wall surface () of the circumferential groove () includes a gentle decline wall () in the tread surface side, and a steep decline wall () in the groove bottom side.