Envelopes – wrappers – and paperboard boxes – Paperboard box – With closure for an access opening
Patent
1990-04-26
1991-02-26
Elkins, Gary E.
Envelopes, wrappers, and paperboard boxes
Paperboard box
With closure for an access opening
229 23BT, 22912532, 229901, B65D 528
Patent
active
049955578
ABSTRACT:
A food package particularly adapted for packaging food products for eat-in or carryout service is prepared from a pair of combination tray/cover components made from identical blanks of paperboard or the like. Each tray/cover component comprises a base panel with opposed side walls and a rear wall which are retained in an upright condition by glue flaps attached to the rear wall and adhered to the side walls. The front wall remains in the same general plane of the base panel to form an open ended tray for eat-in use. For carryout use, two components are joined together wherein tabs on the ends of the front wall of one component are engaged in slots provided in the rear walls of another component to form a tray/cover combination.
REFERENCES:
patent: 2316457 (1943-04-01), Royce
patent: 2579518 (1951-12-01), Schaefer
patent: 2776083 (1957-01-01), Derman
patent: 3410475 (1968-11-01), Wagner
patent: 3469761 (1969-09-01), Howell
patent: 4444354 (1984-04-01), Staelgraeve
patent: 4470538 (1984-09-01), Heathcock et al.
patent: 4474324 (1984-10-01), Forbes, Jr.
patent: 4856707 (1989-08-01), Lorenz
patent: 4877178 (1989-10-01), Eisman
Elkins Gary E.
Westvaco Corporation
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