US PATENT SUBCLASS 439 / 615
.~.~ Having screw-thread-coupling contact

Current as of: June, 1999
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439 /   HD   ELECTRICAL CONNECTORS

611  DF  WITH VITREOUS-TYPE ENVELOPE (E.G., BASE OF LAMP OR VACUUM TUBE) {5}
613  DF  .~ Connector of the type having only concentric annular contacts or annular contact disposed concentrically about an axial contact {2}
615.~.~ Having screw-thread-coupling contact

DEFINITION

Classification: 439/615

Having screw-thread-coupling contact:

(under subclass 613) Electrical connector wherein one of the contacts of the coupling part carried by the glasslike body carries screwthreads for the purpose of electrically and mechanically coupling to a mating screw-thread-coupling counter-contact carried by a mating counterpart.

SEE OR SEARCH THIS CLASS, SUBCLASS:

641+, 659, 662+, and 734+, for a plural-contact coupling part having a cylindrical or annual, screw-thread-coupling contact disposed concentrically around the longitudinal axis of engagement with mating screw-thread-coupling counterpart.