Security pigments and the process of making thereof
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United States of America Patent
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N/A
Issued Date -
Nov 6, 2008
app pub date -
Oct 3, 2006
filing date -
Oct 3, 2005
priority date (Note) -
Abandoned
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Abstract
Disclosed are methods for using color inconstancy pigments and/or dyes, such as rare earth doped color inconstancy pigments, in security applications including semi-overt and covert security application.
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