Disposable and biodegradable paper cup

Details Disposable and biodegradable paper cup Disposable and biodegradable paper cup

2005-08-09

2005-08-09

Mai, Tri M. (Department: 3727)

Envelopes, wrappers, and paperboard boxes

Paper or paperboard cup

Insulated

C229S005840

Reexamination Certificate

active

06926197

ABSTRACT:
A drinking cup has sandwiched between an inner paper liner and an outer paper shell a ridge structure which has its ridges running peripherally, i.e. perpendicular to the axis, e.g. in the form of corrugations, a mesh or a cell network and can be partially filled with a phase-transition material to maintain a maximum temperature at the exterior of the shell for a given hot temperature of the liquid within the cup.

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