US PATENT SUBCLASS 340 / 426
.~ Of burglary or unauthorized use

Current as of: June, 1999
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340 /   HD   COMMUNICATIONS: ELECTRICAL

425.5  DF  LAND VEHICLE ALARMS OR INDICATORS {11}
426.~ Of burglary or unauthorized use {4}
427  DF  .~.~> Of motorcycles or bicycles
428  DF  .~.~> Responsive to changes in voltage or current in a vehicle electrical system
429  DF  .~.~> Responsive to inertia, vibration, or tilt
430  DF  .~.~> With entrance/exit time delay

DEFINITION

Classification: 340/426

Of burglary or unauthorized use:

(under subclass 425.5) Subject matter in which an alarm or indicator is activated in response to an attempt at unauthorized entry or use of the vehicle.

(1) Note. Classification here requires significant combination of burglar alarm with vehicle.

SEE OR SEARCH THIS CLASS, SUBCLASS:

500+, especially 541+ and 568.1+, for burglar alarms, per se.

SEE OR SEARCH CLASS

180, Motor Vehicles,

287+, for antitheft systems which prevent unauthorized use by controlling one or more systems during attempted operation of the vehicle, as by: (1) application of the brakes, (2) stoppage of the fuel supply, or (3) opening of the ignition circuit in response to a timer. 307, Electrical Transmission or Interconnection Systems,

10.2+, for antitheft systems which prevent activation of the ignition or starter systems of the vehicle.