Foldable cup

Details Foldable cup Foldable cup

1981-05-05

1983-07-05

Shoap, Allan N.

Special receptacle or package

Combined or convertible

Including drinking vessel

206629, 220462, 229 15B, 229 41C, 229 41D, 229 48T, 229 52B, 426115, 426122, B65D 546, B65D 554, B65D 556, B65D 8572

Patent

active

043913660

ABSTRACT:
A foldable cup comprising a collapsed flat tubular outer shell made of a hard material and having open opposite ends and a collapsed flat pouch made of a flexible material and fixedly inserted within the outer shell. This flat foldable cup can be expanded, when the outer shell is opened, without developing crumpled portions in the bottom walls of the pouch and the outer shell.

REFERENCES:
patent: 2382573 (1945-08-01), Moore
patent: 3136475 (1964-06-01), Geimer
patent: 3372859 (1968-03-01), Bjorkengren et al.
patent: 3373917 (1968-03-01), Cox
patent: 3375969 (1968-04-01), Davis, Jr.
patent: 3437258 (1969-04-01), Kugler
patent: 3640381 (1972-02-01), Kanada et al.
patent: 3659777 (1972-05-01), Kanada et al.
patent: 3684156 (1972-08-01), Fettinger et al.
patent: 4196034 (1980-04-01), Kimurg
patent: 4284205 (1981-08-01), Hirata

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