Foldable cardboard cup

Details Foldable cardboard cup Foldable cardboard cup

1987-08-31

1988-12-20

Marcus, Stephen

Envelopes, wrappers, and paperboard boxes

Paperboard box

Lifting or suspending element

229 41R, 229 15B, B65D 328

Patent

active

047920866

ABSTRACT:
This invention provides a foldable cardboard cup, especially one which comprises a conical wall having two symmetrical angular parts tapering to the bottom so that it can be folded into a rectangular piece, and a base having two symmetrical angular parts to facilitate the folding of the angular parts of the conical wall, and two inverted V-shaped parts formed from the apex of the conical base so that after being unfolded, the cup can stand in a fixed form without fear of returning to its original (folded) form when in use.

REFERENCES:
patent: Re20235 (1937-01-01), Boothby et al.
patent: 756311 (1904-04-01), Adams
patent: 1380880 (1921-06-01), Austin
patent: 1738779 (1929-12-01), Lockwood
patent: 1902072 (1933-03-01), Harrod
patent: 2006952 (1935-07-01), Klein
patent: 3108730 (1963-10-01), Reinsberg

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