Plastic bags

Details Plastic bags Plastic bags

1975-12-02

1977-05-03

Norton, Donald F.

Purses, wallets, and protective covers

Protective cover made of flaccid material

For a racquet

24201C, B65D 3324

Patent

active

040208842

ABSTRACT:
A plastic bag has interengageable male and female closure elements on the inner walls adjacent to the bag opening. A yieldable diaphragm extends across the opening of the female element to prevent engagement of the elements during manufacture, handling and stacking.

REFERENCES:
patent: 2144755 (1939-01-01), Freedman
patent: 2772712 (1956-12-01), Post
patent: 3324520 (1967-06-01), Ausnit
patent: 3389733 (1968-06-01), Siegel
patent: 3410327 (1968-11-01), Ausnit
patent: 3746215 (1973-07-01), Ausnit
patent: 3790992 (1974-02-01), Herz
patent: 3808649 (1974-05-01), Ausnit

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