Rigid insulated food tray

Details Rigid insulated food tray Rigid insulated food tray

1993-01-28

1994-07-05

Elkins, Gary E.

Envelopes, wrappers, and paperboard boxes

Paperboard box

Including a polygonal, nonrectangular wall

229 31, 229939, 220443, B65D 556

Patent

active

053260210

ABSTRACT:
A composite material package in the configuration of a fluid confining tray or bowl is fabricated with a corrugated paperboard structural substrate and internally sealed with a blow mold applied film of polymer.

REFERENCES:
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patent: 3489331 (1970-01-01), Andersson
patent: 3792809 (1974-02-01), Schneider et al.
patent: 3973721 (1976-08-01), Nakane
patent: 4001471 (1977-01-01), Rumball
patent: 4247038 (1981-01-01), Forbes, Jr.
patent: 4533065 (1985-08-01), Chazal et al.
patent: 4779758 (1988-10-01), Chazal et al.
patent: 5009939 (1991-04-01), Goldberg

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