US PATENT SUBCLASS 455 / 423
.~.~ Diagnostic testing, malfunction indication, or electrical condition measurement

Current as of: June, 1999
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455 /   HD   TELECOMMUNICATIONS

403  DF  RADIOTELEPHONE SYSTEM {12}
422  DF  .~ Zoned or cellular telephone system {14}
423.~.~ Diagnostic testing, malfunction indication, or electrical condition measurement {2}
424  DF  .~.~.~> System equipment
425  DF  .~.~.~> Subscriber equipment

DEFINITION

Classification: 455/423

Diagnostic testing, malfunction indication, or electrical condition measurement:

(under subclass 422) Subject matter for evaluating or monitoring the condition of a zoned or cellular radiotelephone system in order to determine the presence of a faulty or nonstandard condition.

(1) Note. Testing to determine which one of several normal status conditions of the system exist (e.g., busy-idle, off-hook) is not classified in this or indented subclasses.

(2) Note. Location determination for a mobile station is not classified herein.

SEE OR SEARCH THIS CLASS, SUBCLASS:

67.1+, for measuring, testing, or monitoring of a system having a transmitter and receiver at separate stations.

115, for measuring, testing, or monitoring of a transmitter.

226.1+, for measuring or testing of a receiver.

456, for a mobile unit location determination. SEE OR SEARCH CLASS

324, Electricity: Measuring and Testing, appropriate subclasses for an electrical measurement or test not limited to a telephone instrument or system.

340, Communications: Electrical,

635+, for fault indication of an electrical apparatus or an electrical parameter.

379, Telephonic Communications,

1+, for diagnostic testing, malfunction indication, or electrical condition measurement within a landline telephone network.