Envelopes – wrappers – and paperboard boxes – Paperboard box – Variable volume
Patent
1998-10-30
1999-11-02
Elkins, Gary E.
Envelopes, wrappers, and paperboard boxes
Paperboard box
Variable volume
22911701, 22911715, 229138, B65D 5355
Patent
active
059754117
ABSTRACT:
A collapsible container formed from a single sheet of foldable material. The container includes a bottom portion and a number of side walls extending upwardly therefrom. The side walls are provided with fold lines which permit such to be compressed onto the bottom portion prior to use. The fold lines are positioned in a manner which eliminates the need for leak-inducing cuts in the sheet for the side walls to be easily compressed or extended. A top portion extending upwardly from the side walls provides means for closing the container as well as carrying it.
REFERENCES:
patent: 1808833 (1931-06-01), Brack
patent: 2617559 (1952-11-01), Van Der Spek
patent: 2747380 (1956-05-01), Ridnour
patent: 3032253 (1962-05-01), Younger
patent: 3280871 (1966-10-01), Taylor
patent: 3319684 (1967-05-01), Calhoun
patent: 4243171 (1981-01-01), Prin
patent: 5524789 (1996-06-01), Jackman
patent: 5584413 (1996-12-01), Jung
patent: 5762262 (1998-06-01), Martin
Elkins Gary E.
Greiner Stephen R.
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