US PATENT SUBCLASS 152 / 239
.~.~.~ Annular

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}
231  DF  .~.~ Cross chain type {3}
239.~.~.~ Annular {2}
240  DF  .~.~.~.~> With side anti-skid elements
241  DF  .~.~.~.~> Securing devices {1}

DEFINITION

Classification: 152/239

The cross chain anti-skid device is a unit extending about the wheel when in assembled relation thereto and which may remain a unit during its removal from the wheel. This subclass is largely composed of devices wherein the cross chain tread elements are disposed other than in the conventional straight across manner, or are arranged in specifically designed groups, or both.

(1) Note. For the chain arrangement, see this class, subclass 217 and indented subclasses, 231 and 232.