Folding lunch box

Details Folding lunch box Folding lunch box

1990-10-12

1992-06-23

Sewell, Paul T.

Special receptacle or package

Combined or convertible

Packaged assemblage or kit

206541, 229917, 220337, 220339, A45C 1120

Patent

active

051235404

ABSTRACT:
A collapsible lunch box that can be folded into a flat package for storage when not in use and can be made ready for use by changing the package into a rectangular tube and pivoting two side panels to close the open ends of the tube. The side panels have locking elements which engage openings on the rectangular tube to keep the box closed. In the folded package position the locking elements on the side panels interlock to hold the package in the folded position.

REFERENCES:
patent: 110991 (1871-01-01), Miller
patent: 265796 (1882-10-01), Gernand
patent: 362948 (1887-05-01), Galbreth
patent: 2352927 (1944-07-01), Whitehead
patent: 3372690 (1968-03-01), Ruiz
patent: 4216862 (1980-08-01), Daenen
patent: 4235346 (1980-11-01), Liggett
patent: 4499998 (1985-02-01), Carlson
patent: 4509645 (1985-04-01), Hotta
patent: 4681223 (1987-07-01), Roberts

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