Novelty drinking straw

Details Novelty drinking straw Novelty drinking straw

1975-09-17

1976-05-18

Ward, Jr., Robert S.

Fluid sprinkling, spraying, and diffusing

Fountains or drinking tubes and straws

Drinking

46 1R, 426 85, A47G 2118

Patent

active

039572021

ABSTRACT:
A novelty drinking straw has a layer of liquid crystalline material disposed thereon. As liquid is drawn through the straw, the color of said liquid crystalline material changes.

REFERENCES:
patent: 2063803 (1936-12-01), Gildersleeve
patent: 2248231 (1941-07-01), Hamilton
patent: 2867536 (1959-01-01), Mead et al.
patent: 2983616 (1961-05-01), Levi
patent: 3615595 (1971-10-01), Guttag

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