US PATENT SUBCLASS 313 / 291
.~.~ Electrode formed by coating on envelope

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}
283  DF  .~ Electrode supported by envelope {2}
291.~.~ Electrode formed by coating on envelope

DEFINITION

Classification: 313/291

(under subclass 283) Devices in which the electrode is a conductive coating upon the envelope wall.

SEE OR SEARCH THIS CLASS, SUBCLASS:

355, and the subclasses specified in the notes thereto for miscellaneous coated electrodes.

485, for devices under the class definition which have a fluorescent or phosphorescent material coated upon the envelope wall.

541+, for photosensitive discharge devices which have the cathode coated upon the envelope wall.

SEE OR SEARCH CLASS 427, Coating Processes,

105+, for processes of coating the interior of hollow electrical articles.

428, Stock Material or Miscellaneous Articles,

34.1+, for a tube or conduct type of article which may have a coating on the internal wall thereof.