Insulated drinking cup

Details Insulated drinking cup Insulated drinking cup

1996-08-16

1997-11-11

Elkins, Gary E.

Envelopes, wrappers, and paperboard boxes

Paper or paperboard cup

Insulated

220441, 229939, B65D 322

Patent

active

056854803

ABSTRACT:
A disposable insulated drinking cup includes an inner liner, an outer annular shell, and an air-filled spacer between the liner and shell. The spacer includes a corrugated wall adhered to a backing sheet. Both the corrugated wall and backing sheet are of thin-wall construction to maximize the air volume and insulation properties of the spacer.

REFERENCES:
patent: 2266828 (1941-12-01), Sykes
patent: 2661889 (1953-12-01), Phinney
patent: 4993580 (1991-02-01), Smith
patent: 5205473 (1993-04-01), Coffin, Jr.
patent: 5542599 (1996-08-01), Sobol
patent: 5547124 (1996-08-01), Mueller

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