US PATENT SUBCLASS 383 / 57
.~.~.~ Closure includes inwardly folded bag wall portions

Current as of: June, 1999
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383 /   HD   FLEXIBLE BAGS

42  DF  WITH CLOSURE {16}
43  DF  .~ Self-closing type {1}
44  DF  .~.~ Responsive to content (e.g., valve) {8}
57.~.~.~ Closure includes inwardly folded bag wall portions

DEFINITION

Classification: 383/57

Closure includes inwardly folded bag wall portions:

(under subclass 44) Subject matter wherein the closure comprises two parts of the peripheral wall which have been folded into the bag interior and which form opposing portions of the periphery of the bag mouth.