US PATENT SUBCLASS 383 / 51
.~.~.~.~ Slit or slot

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}
48  DF  .~.~.~ With supplemental closing feature {4}
51.~.~.~.~ Slit or slot

DEFINITION

Classification: 383/51

Slit or slot:

(under subclass 48) Subject matter wherein an elongated cut or opening extends through the material of the closure for the purpose of increasing its flexibility to enhance closing.