Security device comprising optically variable data and method for making the same
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United States of America Patent
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-
Dec 21, 1993
Grant Date -
N/A
app pub date -
Aug 29, 1991
filing date -
Aug 29, 1991
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A security-printing device comprising: (i) a substrate; (ii) a toner image adhered to said substrate; and, (iii) a layer of an optically variable material adhered solely to said toner image, whereby said optically variable material is selected to provide a distinct visual appearance and is not readily reproducible or readily available in the general market-place.
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Cited Art Landscape
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