Use of pearlescent and other pigments to create a security document
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United States of America Patent
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-
Dec 7, 2004
Grant Date -
Apr 3, 2003
app pub date -
Oct 2, 2001
filing date -
Oct 2, 2001
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A security instrument and method of forming the same, in which the instrument is comprised of a series of layers which overlay one another, and in which at least one of the layers has a pattern imprinted thereon in a predetermined location, with pearlescent materials of varying colors and hues. When the layers are bonded together on a base member, a design emerges at the surface that provides optical variations, depending on the attitude and lighting at which the instrument is viewed.
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Family
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Cited Art Landscape
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