Paperboard drinking cup

Details Paperboard drinking cup Paperboard drinking cup

1988-09-08

1989-09-19

Marcus, Stephen

Envelopes, wrappers, and paperboard boxes

Paperboard box

Including a polygonal, nonrectangular wall

229 15B, 229104, 229193, 22911706, 229192, 229190, B65D 536, B65D 518

Patent

active

048673749

ABSTRACT:
A collapsible, self-standing, liquid resistant, drinking cup formed from a unitary blank of uncoated paperboard and having a bottom wall member and a pair of side wall members that are interconnected at their side edges and that have certain lower edges joined to the bottom wall member and other lower edges disposed below the bottom wall member to support the erected cup on a horizontal surface.

REFERENCES:
patent: 1025937 (1972-05-01), Vargyas et al.
patent: 1351412 (1920-08-01), Carr
patent: 1478838 (1923-12-01), Reifsnyder
patent: 1690586 (1928-11-01), Main
patent: 1738782 (1929-12-01), Main
patent: 2323287 (1943-07-01), Amberg
patent: 3317118 (1967-05-01), Harrison et al.
patent: 3726469 (1973-04-01), Koehler
patent: 4020988 (1977-05-01), Kipp
patent: 4094457 (1978-06-01), Spillson
patent: 4227640 (1980-08-01), Roccaforte

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