US PATENT SUBCLASS 280 / 638
.~ Extensible

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

29  DF  WHEELED {21}
638.~ Extensible {6}
35  DF  .~.~> Article support
639  DF  .~.~> Folding {7}
656  DF  .~.~> Trailer
657  DF  .~.~> Carriage for live occupant {1}
659  DF  .~.~> Hand cart of barrow
43  DF  .~.~> Vertically adjustable wheels {8}

DEFINITION

Classification: 280/638

(under subclass 29) Wheeled vehicles constructed in such a manner so as to allow the physical dimension of the vehicle, or part thereof, to vary or change.

(1) Note. The following features, generally associated with vehicles of the type found elsewhere in this class are not considered extensible:

A. Detachable or changeable bodies or body portions which are intended to be attached or removed merely for the purposes of selectively adapting the vehicle to carry different types of loads without change in a vehicle dimension other than that produced by the different bodies.

B. Transitory changes in the wheel and axle positions to aid in loading.

C. Changes in the position of a loading toe or of a rack associated with the toe.

D. Retractable elements, as for example, rest legs which do not, when extended, produce a substantial change in an overall dimension of the vehicle. See the search notes below for subclass references to these art areas.

SEE OR SEARCH THIS CLASS, SUBCLASS:

47.18, for detachable or changeable bodies or body portions which are intended to be attached or removed merely for the purposes of selectively adapting the vehicle to carry different types of loads without change in a vehicle dimension other than that produced by the different bodies.

47.21, for transitory changes in the wheel and axle positions to aid in loading.

47.27+, for changes in the position of a loading toe or of a rack associated with the toe.

47.33, for retractable elements, as for example, rest legs which do not, when extended, produce a substantial change in an overall dimension of the vehicle.

87.05, for extensible coasters.

278, and 287, for extensible and knockdown occupant propelled vehicles.

SEE OR SEARCH CLASS

52, Static Structures (e.g., Buildings),

67, for a structure of more general application having telescoping sub and main enclosures.