US PATENT SUBCLASS 338 / 70
.~ In or on lamp socket

Current as of: June, 1999
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338 /   HD   ELECTRICAL RESISTORS

68  DF  MECHANICALLY VARIABLE (E.G., RHEOSTAT) {24}
70.~ In or on lamp socket {4}
71  DF  .~.~> Resistor surfaces pressed together (e.g., compressible type)
72  DF  .~.~> Resistor with intervening connector between contact and element (e.g., taps)
73  DF  .~.~> Resistor with contact angularly slidable on element
74  DF  .~.~> Resistor with contact rectilinearly slidable on element

DEFINITION

Classification: 338/70

(under subclass 68) Subject matter including a lamp socket together with a resistor as defined in subclass 68 positioned within the socket, or directly on and in engagement with the surface of the socket, and in circuit with the terminal or terminals of the socket.

(1) Note. The lamp socket to receive the lamp is usually of the type classifiable as such in Class 439, Electrical Connectors. Usually when structure in addition to that classified in Class 439 is recited, as relating to Class 240, Illumination, or to Class 340, Communications: Electrical, classification is not in this subclass (70) or in Class 439, but in the more comprehensive subclass. See the Search Notes under Classes 313 and 439 for a statement of the classification lines between Class 439 and other classes relating to lamp bases and sockets. The resistor must be intimate relationship with the socket as being contained therein or in a surface recess for classification in this subclass (70). A mere electrical connection between the resistor and the socket or a remote mounting of the resistor on the socket is not sufficient for classification here. Subclasses 315+, provides for resistors with mounting or supporting means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

184, and 199, for mechanically variable resistors in housings generally.

215, for resistors generally with a switch.

219, for resistors generally mounted in or on a lamp socket. See also the Search Notes under this subclass for a more extended field of search for this subject matter. 220, for resistors generally in a detachable electrical connector.