US PATENT SUBCLASS 220 / 367.1
.~ Vent in closure

Current as of: June, 1999
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220 /   HD   RECEPTACLES

200  DF  CLOSURES {45}
367.1.~ Vent in closure {4}
368  DF  .~.~> With reservoir for vent discharge
369  DF  .~.~> Antispattering cover {1}
371  DF  .~.~> With filter {1}
373  DF  .~.~> With means to prevent escape of contents through vent {1}

DEFINITION

Classification: 220/367.1

Vent in closure:

(under subclass 200) Device having a ventilating passage therein.

SEE OR SEARCH THIS CLASS, SUBCLASS:

203.01+, for a receptacle closure comprising a pressure responsive vent or valve.

745, for a vent structure attached to the container body.