US PATENT SUBCLASS 297 / 344.18
.~.~.~ Slidably coupled components (e.g., telescoped, etc.)

Current as of: June, 1999
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297 /   HD   CHAIRS AND SEATS

311  DF  MOVABLE BOTTOM {5}
344.1  DF  .~ Bottom and back movable as a unit {3}
344.12  DF  .~.~ Vertically adjustable {4}
344.18.~.~.~ Slidably coupled components (e.g., telescoped, etc.) {2}
344.19  DF  .~.~.~.~> Gas or hydraulic cylinder
344.2  DF  .~.~.~.~> Motor actuated

DEFINITION

Classification: 297/344.18

Slidably coupled components (e.g., telescoped):

(under subclass 344.12) Device wherein the vertical adjustment means includes relatively movable interfitted elements that are either telescoped or slidably interengaged with each other.