US PATENT SUBCLASS 152 / 320
.~.~.~.~.~.~.~ Chambered

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

151  DF  TIRES, RESILIENT {14}
246  DF  .~ Cushion {4}
310  DF  .~.~ Casing enclosed core {1}
311  DF  .~.~.~ Separate core {1}
312  DF  .~.~.~.~ Removable {5}
318  DF  .~.~.~.~.~ Integral structure {3}
319  DF  .~.~.~.~.~.~ Recessed {1}
320.~.~.~.~.~.~.~ Chambered

DEFINITION

Classification: 152/320

The recessed integral separate enclosed core is provided with enclosed chambers. Such chambers may be formed by the combined tire and rim. This subclass includes chambers of large circumferential extent, and they may extend entirely around the tire.

(1) Note. See this class, subclasses 157, 322, 325, 327, and indented subclasses, 333.1, 338.1, 339.1, and 342.1.