Envelopes – wrappers – and paperboard boxes – Paperboard box – With closure for an access opening
Patent
1997-12-04
1998-10-27
Elkins, Gary E.
Envelopes, wrappers, and paperboard boxes
Paperboard box
With closure for an access opening
229114, 229902, B65D 542
Patent
active
058267840
ABSTRACT:
A new fast food box tray for preventing spills when placed on a user's lap. The inventive device includes a bottom tray. A top tray is foldably secured to an upper edge of the bottom tray. A rigidifying member is extendable between the top tray and the bottom tray in an open orientation.
REFERENCES:
patent: 1083403 (1914-01-01), Joslin
patent: 1762900 (1930-06-01), Todd
patent: 3713578 (1973-01-01), Johnson
patent: 4762272 (1988-08-01), Herrin
patent: 5039003 (1991-08-01), Gordon et al.
patent: 5261533 (1993-11-01), Adams et al.
patent: 5538179 (1996-07-01), Cai
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