Resilient tires and wheels – Tires – resilient – Anti-skid devices
Reexamination Certificate
2003-11-27
2008-08-26
Maki, Steven D (Department: 1791)
Resilient tires and wheels
Tires, resilient
Anti-skid devices
C152S209240, C152S209270, C152S209280
Reexamination Certificate
active
07416003
ABSTRACT:
A tread surface the tire rotational direction of which is specified in one direction has a center region and shoulder regions on both sides of the center region. Blocks are defined in at least one of the shoulder regions by at least one first circumferential groove which extends in a circumferential direction of the tire, and first lateral grooves which extend in a widthwise direction of the tire and are disposed at predetermined intervals in the tire circumferential direction. Each block includes a tire rotational direction side groove wall surface having an inclination angle α, and a tire reverse rotation direction side groove wall surface having an inclination angle β, and the inclination angle β is greater than the inclination angle α. Each block has a tire rotational direction side edge portion which is chamfered.
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PCT International Search Report for PCT/JP03/15185 mailed on Mar. 9, 2004.
Greer Burns & Crain Ltd.
Maki Steven D
The Yokohama Rubber Co. Ltd.
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