US PATENT SUBCLASS 152 / 209.7
.~.~.~.~ Including foam section

Current as of: June, 1999
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152 /   HD   RESILIENT TIRES AND WHEELS

151  DF  TIRES, RESILIENT {14}
208  DF  .~ Anti-skid devices {8}
209.1  DF  .~.~ Tread {13}
209.5  DF  .~.~.~ Having tread sections (e.g., base-cap, etc.) containing different specified physio-chemical properties (e.g., hysteresis, modulus, hardness, etc.) or compositions {2}
209.7.~.~.~.~ Including foam section

DEFINITION

Classification: 152/209.7

INCLUDING FOAM SECTION:

(under subclass 209.5) Tread wherein at least one section has randomly dispersed pores or voids.