Tamper evident optical device and article utilizing the same

Details Tamper evident optical device and article utilizing the same Tamper evident optical device and article utilizing the same

1988-01-25

1989-06-20

Norton, Donald F.

Bottles and jars

Closures

Including visual indicia

206459, 229102, 350166, B65D 5502

Patent

active

048402818

ABSTRACT:
Tamper evident optical device having at least first and second layers with a spacer layer therebetween and providing a desired optical property. A release layer is disposed between the first and second layers which permits the first and second layers to be separated from each other and to destroy the desired optical property.

REFERENCES:
patent: 3858977 (1975-01-01), Baird et al.
patent: 4475661 (1984-10-01), Griffen
patent: 4480749 (1984-11-01), Laucis et al.

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