Valve type shipping bag

Details Valve type shipping bag Valve type shipping bag

1976-05-03

1977-05-31

Garbe, Stephen P.

Envelopes, wrappers, and paperboard boxes

File folder or file envelope

Hanging type

229DIG14, B65D 3114

Patent

active

040264602

ABSTRACT:
A force flow valve type shipping bag including a vapor barrier ply, incorporating a valve-like sealable vent communicating between the exterior of the bag and the space between the vapor barrier ply and the inner wall plies of the bag.

REFERENCES:
patent: 1938593 (1933-12-01), Jarrier
patent: 2105376 (1938-01-01), Scott
patent: 2340546 (1944-02-01), Meaker
patent: 3357632 (1967-12-01), Stanforth
patent: 3370780 (1968-02-01), Show
patent: 3394871 (1968-07-01), Williams et al.
patent: 3937395 (1976-02-01), Lawes

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