US PATENT SUBCLASS 152 / 209.13
.~.~.~.~ Having circumferential rib at or crossing equatorial plane

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}
209.12  DF  .~.~.~ Containing lugs having or appearing to have net to gross ratios of less than 35 percent (e.g., farm equipment, tractor tire, etc.) {1}
209.13.~.~.~.~ Having circumferential rib at or crossing equatorial plane

DEFINITION

Classification: 152/209.13

Having circumferential rib at or crossing equatorial plane:

(under subclass 209.12) Tread having a circumferential rib at or crossing the equatorial plane of a tire.