US PATENT SUBCLASS 152 / 209.9
.~.~.~.~ Characterized by different groove widths

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}
209.8  DF  .~.~.~ Having asymmetric tread pattern {1}
209.9.~.~.~.~ Characterized by different groove widths

DEFINITION

Classification: 152/209.9

CHARACTERIZED BY DIFFERENT GROOVE WIDTHS:

(under subclass 209.8) Tread having groove widths on one side of the equatorial plane of a tire that are dissimilar to groove widths on the other side of the equatorial plane of said tire.