US PATENT SUBCLASS 135 / 158
.~.~.~ Upwardly extending roof structure

Current as of: June, 1999
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135 /   HD   TENT, CANOPY, UMBRELLA, OR CANE

87  DF  PORTABLE SHELTER (I.E., TENT OR CANOPY) {18}
121  DF  .~ Framework {9}
157  DF  .~.~ Parallelogram type {1}
158.~.~.~ Upwardly extending roof structure {2}
159  DF  .~.~.~.~> Having central hub
160  DF  .~.~.~.~> Inclined top cover

DEFINITION

Classification: 135/158

Upwardly extending roof structure:

(under subclass 157) Parallelogram framework which contains structure forming a top portion.