US PATENT SUBCLASS 392 / 438
.~.~.~.~ Heating element formed as coating on radiating panel surface

Current as of: June, 1999
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392 /   HD   ELECTRIC RESISTANCE HEATING DEVICES

*  DD  HEATING DEVICES (CLASS 219 SUBCLASS 200) {11}
407  DF  .~ Radiant heater {10}
432  DF  .~.~ Radiant extended surface type heater {2}
435  DF  .~.~.~ With heat radiating panel {2}
438.~.~.~.~ Heating element formed as coating on radiating panel surface {1}
439  DF  .~.~.~.~.~> Nonmetallic panel

DEFINITION

Classification: 392/438

Heating element formed as coating on radiating panel surface:

(under subclass 435) Subject matter wherein the the heating element is a layer of an electrical resistance material spread over a surface of the radiating panel.

SEE OR SEARCH CLASS

219, Electric Heating,

543, for coating printed or deposited on core sheath or support means.

338, Electrical Resistors,

307, 309 for resistance element coated on base.