Appeal No. 2001-2495
Application No. 09/110,876
APPENDIX (CONT.)
5. A pneumatic tire provided with a tread divided into
a plurality of block-shaped land portions, the
periphery of each of said block-shaped land portions
being bordered by a plurality of main grooves extending
in the circumferential direction of said pneumatic
tire, and by a plurality of lug grooves extending in
the transverse direction of said pneumatic tire and
intersecting said main grooves, and each of said
block-shaped land portions having at least four sipings
aligned in a transverse direction, wherein:
a wall surface of each of said block-shaped land
portions on a lug groove side has a stepped
configuration defining a stepped portion and a base
portion of said block-shaped land portions is larger
than a tread portion of said block-shaped portions.
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Last modified: November 3, 2007