US PATENT SUBCLASS 152 / 208
.~ Anti-skid devices

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

151  DF  TIRES, RESILIENT {14}
208.~ Anti-skid devices {8}
209.1  DF  .~.~> Tread {13}
213 R  DF  .~.~> Applying and removing devices {2}
217  DF  .~.~> Tighteners {2}
220  DF  .~.~> Plural tire
221  DF  .~.~> Flexible straps or cords {1}
223  DF  .~.~> Combined cross chains and plates or bars {1}
225 R  DF  .~.~> Plate or bar type {2}
231  DF  .~.~> Cross chain type {3}

DEFINITION

Classification: 152/208

Devices arranged upon a tire so as to give with the flexure of the tire and so constructed and arranged as to tend to prevent slipping or skidding of the tire on the roadway.

(1) Note. For anti-skid devices in combination with or forming tire armor, see this class, subclass 167 and indented subclasses. See the definition of Tires, resilient, Armored, following subclass 166.

(2) Note. For anti-skid devices for use with footwear, see Class 36, Boots, Shoes, and Leggings, subclasses 7.6, 7.7, and 59 and indented subclasses.

(3) Note. For anti-slipping pulleys, see Class 474, Endless Belt Power Transmission Systems or Components, particularly subclasses 177+ and 190+ for pulleys with a material on the belt-engaging surface which may be effective to reduce slippage.

(4) Note. For anti-skid devices attached to portions of the vehicle which do not rotate with the wheel, see Class 188, Brakes, subclasses 4, 5 and 6.

(5) Note. For traction mats which facilitate extraction of motor driven vehicles when stalled in mud or sand, see Class 238, Railways: Surface Track, subclass 14.

(6) Note. For anti-skid devices which do not give with the flexure of the tire, see Class 301, Land Vehicles: Wheels and Axles, subclasses 41.1+.

(7) Note. See Class 305, Wheel Substitutes for Land Vehicles, appropriate subclasses for flexible tracks for land vehicles. Class 305 takes devices where the sole specific disclosure or a claim is directed to an anti-skid device which is adapted to be trained about a pair of longitudinally spaced resilient tires and intended to operate as a flexible track apparatus. (8) Note. See Class 520, Synthetic Resins or Natural Rubbers, appropriate subclasses, particularly Class 523, subclass 152 for a composition containing a synthetic resin or natural rubber having utility as a friction element for automobiles, trains, trailers, roller skates, skateboards, or other wheeled vehicles or to processes of preparing said composition.