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US 6,030,000 AGranted
Negotiable document having enhanced security for deterring fraud by use of a thermochromatic fingerprint image
AssigneeDiamond Security, Inc.
InventorRobert I. Diamond
Life of this patent
Estimating the term…
Abstract
A negotiable document having enhanced security for deterring fraud includes at least one thermochromatic fingerprint image printed with thermochromatic ink, wherein said thermochromatic fingerprint image will fade when heat is transferred to the image from a live human hand. The negotiable document further includes a warning clause that the negotiable document may be fraudulent without the thermochromatic fingerprint image.
Claims10
A negotiable document having enhanced security for deterring fraud, including:
- at least one thermochromatic image printed with thermochromatic ink, wherein said thermochromatic image will fade when heat is transferred to the image from a live human hand.
A negotiable document having enhanced security for deterring fraud, including:
- at least one thermochromatic image printed with thermochromatic ink, wherein said thermochromatic image will fade when heat is transferred to the image from a live human hand, said image being impressed by a signature plate concurrent with impressing an authorized signature.
Dependencies are inferred from the claim text.