Resilient tires and wheels – Tires – resilient – Anti-skid devices
Reexamination Certificate
2005-06-21
2005-06-21
Maki, Steven D. (Department: 1733)
Resilient tires and wheels
Tires, resilient
Anti-skid devices
C152S209210, C152S209230, C152SDIG003
Reexamination Certificate
active
06907910
ABSTRACT:
A pneumatic tire comprises a tread portion comprising tread elements each provided with a sipe, the sipe having an open top end and a bottom, and in a range from the open top to a certain depth, a configuration of the sipe in a plane parallel with the tread face comprising a zigzag part oscillating in the longitudinal direction of the sipe in the course from the open top to said certain depth.
REFERENCES:
patent: 4566514 (1986-01-01), Mauk et al.
patent: 5350001 (1994-09-01), Beckmann et al.
patent: 5783002 (1998-07-01), Lagnier
patent: 6026875 (2000-02-01), Diensthuber et al.
patent: 6564840 (2003-05-01), Kleinhoff et al.
patent: 6719024 (2004-04-01), Kuze
patent: 0 864 448 (1998-09-01), None
patent: 2002-321509 (2002-11-01), None
Birch & Stewart Kolasch & Birch, LLP
Maki Steven D.
Sumitomo Rubber Industries Ltd.
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