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Envelopes – wrappers – and paperboard boxes – Paperboard box – With closure for an access opening

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Details

229103, 229128, B65D 528

Patent

active

052940438

ABSTRACT:
A paperboard panel having score lines thereon such that it can be folded to form a 4-point glued infold tray to contain product, can be folded flat for storage purposes or can receive product and be further folded to form a closed box-like structure totally enclosing the product and having a self-locking feature to keep the box in its closed position.

REFERENCES:
patent: 2251565 (1941-08-01), Forman
patent: 2316701 (1943-04-01), Marshall
patent: 2980310 (1961-04-01), Arneson
patent: 3886901 (1975-06-01), Zeitter
patent: 4206868 (1980-06-01), Stephens
patent: 4306658 (1981-12-01), Montealegre
patent: 4340169 (1982-07-01), Webinger
patent: 4452367 (1984-06-01), Wein
patent: 4628863 (1986-12-01), Eichenauer
patent: 4702409 (1987-10-01), Osbourne
patent: 4807563 (1989-02-01), Barry et al.
patent: 5060849 (1991-10-01), King
patent: 5062527 (1991-11-01), Westerman
patent: 5115524 (1992-05-01), Ankosko

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