Voucher with self-contained verification means
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United States of America Patent
Stats
-
May 27, 1986
Grant Date -
N/A
app pub date -
Sep 9, 1983
filing date -
Sep 9, 1983
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A voucher resistant to tampering, having self-contained means for verifying the authenticity of said voucher. At least two correlated identifying indicia are applied to the top surface of the voucher substrate. A layer of release coating is applied over one identifying indicia, and a cover layer (preferably opaque) of removable coating is applied over the release coating layer. The relative adhesive qualities of the layers are selected to render ordinary use of the voucher easy but tampering difficult.
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Cited Art Landscape
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