Plastic tumbler

Details Plastic tumbler Plastic tumbler

1991-03-29

1991-12-10

Elkins, Gary E.

Envelopes, wrappers, and paperboard boxes

Paperboard box

Box material includes a coating or a nonpaperboard...

220675, B65D 140

Patent

active

050710605

ABSTRACT:
A water tumbler or the like having a smooth interior and ribs on the exterior, the ribs extending in spaced relation from top to bottom of the tumbler and being deeper at a central area vertically of the tumbler to disperse heat or cold from the surface of the outside of the tumbler.

REFERENCES:
patent: 3033434 (1962-05-01), Carson
patent: 3169689 (1965-02-01), Schwartz
patent: 3237834 (1966-03-01), Davis et al.
patent: 4261501 (1981-04-01), Watkins et al.
patent: 4446969 (1984-05-01), Tyler

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