US PATENT SUBCLASS 313 / 277
.~.~.~ Insulating standard supports filament brackets or anchors

Current as of: June, 1999
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313 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES

238  DF  WITH SUPPORT AND/OR SPACING STRUCTURE FOR ELECTRODE AND/OR SHIELD {9}
271  DF  .~ For filament {6}
275  DF  .~.~ Insulator supports filament {2}
277.~.~.~ Insulating standard supports filament brackets or anchors

DEFINITION

Classification: 313/277

(under subclass 275) Devices having an insulating standard or rod which supports filament anchors or brackets, the filament anchors or brackets engaging and supporting the filament.

(1) Note. The devices in this and the indented subclass include incandescent lamps which are provided with an envelope have a stem, a glass or ceramic rod or standard being supported by the stem, the rod or standard usually being fused to or being integral with the stem, filament supporting brackets or anchors being attached to the rod or standard, usually by fusing the brackets or anchors to the rod or standard, the filament being supported by the supporting brackets.

SEE OR SEARCH THIS CLASS, SUBCLASS:

289, and the subclasses specified in the notes to the definition of that subclass for other devices under subclass 238 which have an envelope and an electrode other than a filament supported by an insulating or ceramic support rod therein.

SEE OR SEARCH CLASS

248, Supports, 65+, for brackets for supporting pipe or cables, subclasses 300+ for brackets formed of sheet material, and subclasses 302+ for brackets formed of wire.