US PATENT SUBCLASS 220 / 748
.~.~.~ Liquid trap

Current as of: June, 1999
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220 /   HD   RECEPTACLES

694  DF  CONTAINER ATTACHMENT OR ADJUNCT {21}
745  DF  .~ Container vent means {3}
747  DF  .~.~ Tortuous path {1}
748.~.~.~ Liquid trap

DEFINITION

Classification: 220/748

Liquid trap:

(under subclass 747) Subject matter wherein the tortuous passage includes a body of liquid material through which vapors must pass.

SEE OR SEARCH THIS CLASS, SUBCLASS:

228, for a similar liquid trap between the receptacle body and a closure.