US PATENT SUBCLASS 152 / 209.5
.~.~.~ Having tread sections (e.g., base-cap, etc.) containing different specified physio-chemical properties (e.g., hysteresis, modulus, hardness, etc.) or compositions


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.~.~.~ Having tread sections (e.g., base-cap, etc.) containing different specified physio-chemical properties (e.g., hysteresis, modulus, hardness, etc.) or compositions {2}
209.6  DF  .~.~.~.~> Including retread or precured tread section
209.7  DF  .~.~.~.~> Including foam section


DEFINITION

Classification: 152/209.5

Having tread sections (e.g., base-cap, etc.) containing different specified physio-chemical properties (e.g., hysteresis, modulus, hardness, etc.) or compositions:

(under subclass 209.1) Tread having at least one section with specified physio-chemical properties or compositions which are different from specified physio-chemical properties or compositions of another section.