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. 15, 2013
Filed:
May. 07, 2010
Yoshihiro Hada, Kobe, JP;
Yoshihiro Hada, Kobe, JP;
Sumitomo Rubber Industries, Ltd., Kobe, JP;
Abstract
A pneumatic tirehaving excellent on-snow performances improved with maintaining steering stability and uneven wear resistance and including tread portionhaving a pair of crown circumferential grooveswhich extend continuously in the tire circumferential direction on both sides of tire equator C and have groove edges, one edgeextending in such a zigzag form that italic L-shaped groove edge segmentsare continuously connected to each other in the circumferential direction, and the other edgeextending in such a wavy form that circular arc groove edge segmentseach having a circular arc shape convex toward a groove center are continuously connected to each other in the circumferential direction, wherein each of the italic L-shaped groove edge segmentscomprises long side partinclined at an angle of 1 to 20° with respect to the circumferential direction, and short side parthaving a circumferential length smaller than that of the long side partand inclined in the opposite direction to the long side partwith respect to the circumferential direction.