US PATENT SUBCLASS 220 / 276
.~.~.~.~ Line of weakness extends circumferentially of receptacle mouth

Current as of: June, 1999
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220 /   HD   RECEPTACLES

200  DF  CLOSURES {45}
260  DF  .~ With closure opening arrangements for means (e.g., opening devices) {5}
265  DF  .~.~ Frangible member or portion {2}
266  DF  .~.~.~ About line or point of weakness {4}
276.~.~.~.~ Line of weakness extends circumferentially of receptacle mouth

DEFINITION

Classification: 220/276

(under subclass 266) Device wherein the line of weakness extends about the circumference of the receptacle or closure, near or at the juncture of the receptacle and closure.