Transaction card
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United States of America Patent
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Jul 29, 2014
Grant Date -
Apr 11, 2013
app pub date -
Oct 5, 2012
filing date -
Oct 7, 2011
priority date (Note) -
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Abstract
This invention relates to a transparent or translucent transaction card having a base comprising a core of substantially transparent or translucent material with a plurality of coats, including optically recognizable ink comprising one or more infrared blocking dyes and other nanoparticles, such as rare earth nanophosphors and other metal nanoparticles, and/or optically recognizable film comprising nanoparticles, such as rare earth nanophosphors, and other metal oxide and/or non-oxide complexes, and methods for their preparation.
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