SECURITY ELEMENT
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United States of America Patent
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N/A
Issued Date -
Dec 29, 2011
app pub date -
Jul 6, 2009
filing date -
Aug 25, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The invention relates to a security element comprising a transparent carrier substrate and a color-changing element made of a layer reflecting electromagnetic waves, a spacing layer, and a layer in the form of metal clusters, characterized in that the layer reflecting the electromagnetic waves is applied to the transparent carrier substrate partially as a line raster and partially as a contiguous layer made of one or more different metals.
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