Resilient tires and wheels – Tires – resilient – Anti-skid devices
Reexamination Certificate
2008-04-14
2011-10-11
Maki, Steven D (Department: 1747)
Resilient tires and wheels
Tires, resilient
Anti-skid devices
C152S209270, C152SDIG020
Reexamination Certificate
active
08033310
ABSTRACT:
A pneumatic tire comprising, on a tread face of the tire, a shoulder land portion extending in a circumferential direction of the tire, and a thin groove extending in the circumferential direction of the tire adjacent to a contact end of the shoulder land portion where comes into contact with the ground and segmenting the shoulder land portion into a main land portion located at the inner side thereof as viewed in the width direction of the tire and a sacrifice land portion located at the outer side thereof as viewed in the width direction of the tire, wherein the thin groove includes an enlarged portion extending in the circumferential direction of the tire in which a groove width thereof at groove bottom is enlarged toward the sacrifice land portion side only, and a protruding portion that protrudes toward the groove bottom side along the inner wall located at the sacrifice land portion side and extends in the circumferential direction of the tire.
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patent: 2246479 (1941-06-01), Schrank
patent: 3095024 (1963-06-01), Robertson
patent: 7208110 (2007-04-01), Lopez et al.
patent: 2003/0005992 (2003-01-01), Radulescu
patent: 0310301 (1989-05-01), None
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patent: 2002-512575 (2002-04-01), None
patent: 2005-343381 (2005-12-01), None
Dye Robert
Fish & Richardson P.C.
Maki Steven D
Toyo Tire & Rubber Co., Ltd.
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