US PATENT SUBCLASS 340 / 653
.~.~.~ Electronic circuit or component


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

500  DF  CONDITION RESPONSIVE INDICATING SYSTEM {6}
540  DF  .~ Specific condition {18}
635  DF  .~.~ Condition of electrical apparatus {15}
653.~.~.~ Electronic circuit or component


DEFINITION

Classification: 340/653

Electronic circuit or component:

(under subclass 635) Subject matter where the device is an active electronic circuit or component; e.g., amplifier, vacuum tube, or transistor.

(1) Note. Significant art structure with indicating device will classify claimed subject matter with art structure as pointed out in (2) Note of the general class definitions of this class (340).

SEE OR SEARCH THIS CLASS, SUBCLASS:

654, for monitoring of energization of a component.

SEE OR SEARCH CLASS

330, Amplifiers,

2, for amplifiers with indicating means. 331, Oscillators,

64, for oscillators with alarms.

377, Electrical Pulse Counters, Pulse Dividers, or Shift Registers: Circuits and Systems,

112+, for electrically operated registers with indicators.