Level-indicating pizza box

Details Level-indicating pizza box Level-indicating pizza box

1998-06-12

1999-03-30

Elkins, Gary E.

Envelopes, wrappers, and paperboard boxes

Paperboard box

Separate reinforcing element

33379, 33389, 220694, 229152, 229906, B65D 544

Patent

active

058877835

ABSTRACT:
A disposable foldable rectangular cardboard pizza box has a lid portion having a denoted center which receives a domed spirit level. The spirit level, preferably secured to the box by contact adhesive, facilitates manipulation of the box to a horizontal position.

REFERENCES:
patent: 2995375 (1961-08-01), Bukovey
patent: 3269729 (1966-08-01), Morrison
patent: 4100681 (1978-07-01), Hollander
patent: 4126944 (1978-11-01), Burkhart
patent: 4989332 (1991-02-01), Worrallo
patent: 5270686 (1993-12-01), Martinez
patent: 5445286 (1995-08-01), Guimarin
patent: 5463817 (1995-11-01), Leeds
patent: 5470002 (1995-11-01), DiStefano et al.

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