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:
Mar. 22, 2011
Filed:
Sep. 10, 2007
Yuichi Nakamura, Osaka, JP;
Hiroaki Sugimoto, Osaka, JP;
Yuichi Nakamura, Osaka, JP;
Hiroaki Sugimoto, Osaka, JP;
Toyo Tire & Rubber Co., Ltd., Osaka, JP;
Abstract
A pneumatic tire comprising a shoulder land portion and a narrow groove, the narrow groove comprises a first enlarged portion enlarging a groove width at a groove bottom only on the sacrificed portion side, a second enlarged portion being formed adjacently on the tread face side of the first enlarged portion and enlarging a groove width only on the sacrificed portion side, a projection portion being formed between the first enlarged portion and the second enlarged portion while projecting toward the main body land portion from an inner wall on the sacrificed land portion side, and a flat face portion having a depth, from the tread face, of 30% or more of a groove depth of the narrow groove, and having an inner wall on the sacrificed land portion side and an inner wall on the main body land portion side.