Container having a valve movable between one-way flow and closed

Details Container having a valve movable between one-way flow and closed Container having a valve movable between one-way flow and closed

1974-05-24

1976-04-13

Price, William

Envelopes, wrappers, and paperboard boxes

File folder or file envelope

Hanging type

137525, 150 9, 220208, 220209, 222396, 222494, B65D 3114

Patent

active

039499340

ABSTRACT:
A container for packing up products characterized by at least a one-way passage from inside to outside the container, and after sterilizing the filled up container, structure for closing said one-way passage to separate the inside from the outside of the container.

REFERENCES:
patent: 3527376 (1970-09-01), Young, Jr.
patent: 3595467 (1971-07-01), Goglio
patent: 3618825 (1971-11-01), Clarke
patent: 3633605 (1972-01-01), Smith
patent: 3799427 (1974-03-01), Goglio
patent: 3807445 (1974-04-01), McPhee

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