US PATENT SUBCLASS 446 / 444
.~ Including extrinsic guide or means cooperable with extrinsic guide

Current as of: June, 1999
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446 /   HD   AMUSEMENT DEVICES: TOYS

431  DF  ROLLING OR TUMBLING (E.G., WHEELED) {16}
444.~ Including extrinsic guide or means cooperable with extrinsic guide {2}
445  DF  .~.~> Cooperable traction means on vehicle and roadway
446  DF  .~.~> By guide surface below running surface {1}

DEFINITION

Classification: 446/444

Including extrinsic guide or means cooperable with extrinsic guide:

(under subclass 431) Device including either (1) fixed structure external to and not forming a part of the rolling or tumbling means, for constraining the movement of the rolling or tumbling means to a particular path, or (2) means on the rolling or tumbling means adapted to engage such fixed structure to constrain the movement of the rolling or tumbling means to a particular path.

(1) Note. A track which allows a vehicle thereon to change lanes at any time is not considered to be an extrinsic guide as defined above.

SEE OR SEARCH THIS CLASS, SUBCLASS:

455, for a multilane track having ribbon conductors along the surface through which commands are given to a vehicle to change lanes.

467, for a simulated railway vehicle which does not have flanged wheels (as claimed).

SEE OR SEARCH CLASS

104, Railways, appropriate subclasses for electrically powered toy railways (see the search notes to Class 104 in the main definition to Class 446 for the line).

238, Railways: Surface Track, 10, for toy track.