US PATENT SUBCLASS 280 / 639
.~.~ Folding

Current as of: June, 1999
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280 /   HD   LAND VEHICLES

29  DF  WHEELED {21}
638  DF  .~ Extensible {6}
639.~.~ Folding {7}
640  DF  .~.~.~> Casket or stretcher type
37  DF  .~.~.~> Traveling case
38  DF  .~.~.~> Pivoted wheel carrier {2}
42  DF  .~.~.~> Lateral
647  DF  .~.~.~> Wheeled chair, stroller, or baby carriage {3}
651  DF  .~.~.~> Cart {1}
655.1  DF  .~.~.~> Handle only is collapsible

DEFINITION

Classification: 280/639

(under subclass 638) Vehicles which vary dimension by folding from a condition of use to a more compact or smaller nonuse form, for ease of storage or shipment.

(1) Note. Folding baby-carriages are found in this group.

SEE OR SEARCH THIS CLASS, SUBCLASS:

9+, for vehicles with wheels and runners, the wheels or runners being retracting.

20, for folding sleds.

32.6, for folding repairmen's creepers. 47.25, and 47.38+ for nonfolding, occupant seating carts or baby-carriages.

SEE OR SEARCH CLASS

297, Chairs and Seats,

16.1+, for a chair or seat having relatively folding bottom, back and legs; subclasses 311+ for a seat bottom movable relative to the remaining structure; subclass 350 for a laterally folding or collapsible back; and subclasses 353+ for a back movable relative to the remaining structure.