US PATENT SUBCLASS 135 / 25.31
.~.~ Including pivoted rib having two segments

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

15.1  DF  UMBRELLA {17}
25.1  DF  .~ Collapsible in length {5}
25.31.~.~ Including pivoted rib having two segments {3}
25.32  DF  .~.~.~> Two pivot link
25.33  DF  .~.~.~> Multiple sliders
25.34  DF  .~.~.~> Folding stretcher

DEFINITION

Classification: 135/25.31

Including pivoted rib having two segments:

(under subclass 25.1) Umbrella structure wherein each rib is formed of two foldable sections connected together by a hinge joint.