US PATENT SUBCLASS 215 / 311
.~.~ With valve


Current as of: June, 1999
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215 /   HD   BOTTLES AND JARS

200  DF  CLOSURES {32}
307  DF  .~ Receptacle interior communicable with exterior with closure in applied position (e.g., vented) {4}
311.~.~ With valve {4}
312  DF  .~.~.~> Ball type
313  DF  .~.~.~> Rotary type
314  DF  .~.~.~> Screw actuated
315  DF  .~.~.~> Spring actuated


DEFINITION

Classification: 215/311

(under subclass 307) Devices, wherein the aperture or passage is provided with a flow regulating or retarding valve.