Wash destructible resonant tag

Details Wash destructible resonant tag Wash destructible resonant tag

2008-08-19

2010-11-23

Le, HoangAnh T (Department: 2821)

Communications: radio wave antennas

Antennas

Spiral or helical type

C343S7000MS, C340S572100

Reexamination Certificate

active

07839352

ABSTRACT:
A resonant tag for use with a radio-wave detection system for the prevention of shoplifting or the like, which has a coil and capacitor circuit formed on opposite sides of an extremely thin substrate of a biaxially-oriented polypropylene, with one of the capacitor plates formed on one side of the substrate and the coil and other capacitor plate formed on the other side of the substrate, and paper layers on both sides of the tag, whereby the circuit is destroyed when the tag is washed in water or dry cleaned.

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International Search Report for PCT/US2008/074037 mailed Nov. 25, 2008.

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