US PATENT SUBCLASS 313 / 622
.~ Discharge device with diverse electrodes

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


313 /   HD   ELECTRIC LAMP AND DISCHARGE DEVICES

567  DF  WITH GAS OR VAPOR {24}
622.~ Discharge device with diverse electrodes

DEFINITION

Classification: 313/622

Discharge device with diverse electrodes:

(under subclass 567) Subject matter wherein there are two electrodes which differ in their structure or in the material composing the electrodes.

SEE OR SEARCH THIS CLASS, SUBCLASS:

581+, for a gas or vapor discharge device having three or more electrodes at least one is different in structure of material from the others.

609, for a gas or vapor discharge device where an electrode is exterior to the device envelope.

616, for a gas or vapor discharge device having a cathode which is provided with a positive or other shielding structure.