US PATENT SUBCLASS 219 / 449.1
.~.~.~ Heating by convection

Current as of: June, 1999
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219 /   HD   ELECTRIC HEATING

200  DF  HEATING DEVICES {14}
385  DF  .~ Combined with container, enclosure, or support for material to be heated {12}
443.1  DF  .~.~ Exposed horizontal planar support surface for material to be heated (e.g., hot plate, etc.) {13}
449.1.~.~.~ Heating by convection

DEFINITION

Classification: 219/449.1

Heating by convection:

(under subclass 443.1) Subject matter including means to provide for fluid circulation to transfer heat between a heating element and the material or the exposed horizontal planar support surface.

SEE OR SEARCH CLASS

392, Electric Resistance Heating Devices,

382, for a concentrated heated air stream (i.e., blast) device including a support for an article.