US PATENT SUBCLASS 313 / 254
.~.~.~.~.~ At three or more portions of envelope

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

238  DF  WITH SUPPORT AND/OR SPACING STRUCTURE FOR ELECTRODE AND/OR SHIELD {9}
243  DF  .~ For plural electrodes of discharge device {3}
244  DF  .~.~ Envelope supports or forms electrode {5}
252  DF  .~.~.~ Support structure supported by the envelope {7}
253  DF  .~.~.~.~ At spaced or opposed portions of envelope {2}
254.~.~.~.~.~ At three or more portions of envelope

DEFINITION

Classification: 313/254

(under subclass 253) Discharge devices wherein electrode support wires, rods or tubes are supported by three or more opposed or spaced parts of the envelope wall.