US PATENT SUBCLASS 340 / 656
.~.~.~.~ Electrical socket

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


340 /   HD   COMMUNICATIONS: ELECTRICAL

500  DF  CONDITION RESPONSIVE INDICATING SYSTEM {6}
540  DF  .~ Specific condition {18}
635  DF  .~.~ Condition of electrical apparatus {15}
654  DF  .~.~.~ Circuit energization {2}
656.~.~.~.~ Electrical socket

DEFINITION

Classification: 340/656

Electrical socket:

(under subclass 654) Subject matter where the circuit is monitored at an electrical socket and the condition may be whether the socket or load plugged into the socket is energized.

SEE OR SEARCH THIS CLASS, SUBCLASS:

687, for indication of mechanical connection of electrical connectors.

SEE OR SEARCH CLASS

324, Electricity: Measuring and Testing,

133, for testing devices for polarity and hot-line indication.

439, Electrical Connectors,

488+, for an electrical connector combined with an indicating or identifying means.