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:
Jun. 05, 2012
Filed:
Feb. 11, 2008
Akio Ikeda, Kobe, JP;
Naoki Kageyama, Kobe, JP;
Akio Ikeda, Kobe, JP;
Naoki Kageyama, Kobe, JP;
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Abstract
A studless tire capable of suppressing a vehicle from staggering at the time of braking on icy and snow-covered roads, including a tread portionprovided with at least six block rows Rto R, wherein each block B is provided with sipes having a depth of at least 3.0 mm, and the block rows comprises at least two crown block rows CR disposed in a crown region Ac extending from the tire equator C as its center to have a width of 50% of the tread width TW, and at least two shoulder block rows Sh disposed on each axially outer side of the crown block rows CR, and wherein lateral groovesprovided in a block row are inclined in the opposite direction, with respect to the axial direction, to lateral grooves provided in an axially adjacent block row.