Spill proof cup lid

Details Spill proof cup lid Spill proof cup lid

2002-04-11

2003-04-29

Zarfas, Louis S. (Department: 2914)

Design Patent

active

D0473791

CLAIM:
The ornamental design for a spill proof cup lid, as shown and described.

REFERENCES:
patent: 3805991 (1974-04-01), Cheladze et al.
patent: D259403 (1981-06-01), Frazier, Jr.
patent: 4503992 (1985-03-01), Sitko et al.
patent: D353769 (1994-12-01), Miller

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