US PATENT SUBCLASS 313 / 357
.~ Rods


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

326  DF  ELECTRODE AND SHIELD STRUCTURES {14}
357.~ Rods


DEFINITION

Classification: 313/357

(under subclass 326) Electrodes and shields which are in the form of rods.

(1) Note. Where no structure of the electrode or shield is recited except that it is a rod formed of a particular composition, the patent is excluded from Class 313 and will be found in Class 252, Compositions, subclasses 502+ or one of the classes specified in the notes to the definition of those subclasses. See the class definition of Class 313.

SEE OR SEARCH THIS CLASS, SUBCLASS:

238+, for devices under the class definition which are provided with a rod electrode and supporting and/or spacing structure for the rod electrode. See indented subclass 267 where the device is provided with supporting and/or spacing structure for a plurality of rod electrodes. See subclass 238 where the supporting structure for a single rod electrode is claimed.

335, where the rod is provided with a lead wire or connector.

341+, for filaments and resistance heated electrodes.

SEE OR SEARCH CLASS 428, Stock Material or Miscellaneous Articles,

364+, for a rod which is structurally defined or coated, and not elsewhere provided for.