US PATENT SUBCLASS 152 / 209.19
.~.~.~.~ Protrusion from bottom and spaced from both walls (e.g., pebble ejector, etc.)

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}
209.18  DF  .~.~.~ Having groove or sipe with specified dimension or structure therewithin {8}
209.19.~.~.~.~ Protrusion from bottom and spaced from both walls (e.g., pebble ejector, etc.)

DEFINITION

Classification: 152/209.19

PROTRUSION FROM BOTTOM AND SPACED FROM BOTH WALLS (e.g., pebble ejector, etc.):

Tread under 209.18 having an element protruding from the bottom and spaced from both walls of the groove or sipe.

(1) Note. Documents placed in this subclass have a unique anti-skid tread design feature useful as pebble ejectors.