Stock material or miscellaneous articles – Structurally defined web or sheet – Including variation in thickness
Reexamination Certificate
2006-02-28
2006-02-28
Chevalier, Alicia (Department: 1772)
Stock material or miscellaneous articles
Structurally defined web or sheet
Including variation in thickness
C428S167000, C359S002000, C359S359000, C359S360000, C359S580000, C359S584000, C359S585000
Reexamination Certificate
active
07005178
ABSTRACT:
A security article includes a light transmissive substrate having a first surface and an opposing second surface, with the first surface having an embossed region with an optical diffraction pattern or a holographic image pattern. A color shifting optical coating is formed on the substrate such as on the opposing second surface, with the optical coating providing an observable color shift as the angle of incident light or viewing angle changes. The security article can be used in a variety of applications and products to provide for enhanced security measures such as anticounterfeiting.
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Bonkowski Richard L.
Higgins Patrick K.
Markantes Charles T.
Phillips Roger W.
Allen Dyer Doppelt Milbrath & Gilchrist, P.A.
Chevalier Alicia
JDS Uniphase Corporation
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