US PATENT SUBCLASS 219 / 735
.~.~.~ Having vent

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

678  DF  MICROWAVE HEATING {15}
725  DF  .~ Cookware (e.g., vessel, utensil, etc.) {7}
734  DF  .~.~ With cover {1}
735.~.~.~ Having vent

DEFINITION

Classification: 219/735

Having vent:

(under subclass 734) Subject matter wherein a small opening in the cookware cover provides for a release of gas or vapor within the cookware.

SEE OR SEARCH THIS CLASS, SUBCLASS:

757, for a microwave heating cavity with cooling or ventilation.

SEE OR SEARCH CLASS

220, Receptacles,

360+, for a container having a closure with vent means and subclass 913 for a ventilated container.

426, Food or Edible Material: Processes, Compositions, and Products, 118, for a packaged or wrapped product having packaging structure cooperation with food generated gas.