US PATENT SUBCLASS 36 / 119.1
.~.~.~.~.~.~ Having semi-rigid upper with adjustable flexibility

Current as of: June, 1999
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36 /   HD   BOOTS, SHOES, AND LEGGINGS

83  DF  BOOTS AND SHOES {28}
113  DF  .~ Occupational or athletic shoe (e.g., roof climbing, gardening, etc.) {1}
114  DF  .~.~ Athletic shoe or attachment therefor {8}
115  DF  .~.~.~ For a sport (e.g., skating, skiing, etc.) featuring relative movement between shoe and ground {1}
116  DF  .~.~.~.~ For walking or sliding on shifting media {2}
117.1  DF  .~.~.~.~.~ Ski boot {5}
119.1.~.~.~.~.~.~ Having semi-rigid upper with adjustable flexibility

DEFINITION

Classification: 36/119.1

Having semi-rigid upper with adjustable flexibility:

(under subclass 117.1) Foot covering wherein an upper portion of the foot covering includes a zone of adjustable stiffness and means to adjust the stiffness to allow a user's leg to pivot within the boot with respect to the sole.