US PATENT SUBCLASS 220 / 221
.~.~ With gasket means intermediate closure rim and receptacle

Current as of: June, 1999
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220 /   HD   RECEPTACLES

200  DF  CLOSURES {45}
216  DF  .~ Floating closure {6}
221.~.~ With gasket means intermediate closure rim and receptacle {1}
222  DF  .~.~.~> Attached to closure {4}

DEFINITION

Classification: 220/221

(under subclass 216) Device including means acting at the juncture of the closure and on adjacent member to oppose the passage of fluid therebetween.