Fingerprinting system and method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Dec 19, 2000
Grant Date -
N/A
app pub date -
May 7, 1998
filing date -
May 7, 1998
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A system for forming fingerprints comprises a substrate bearing a designated print image-forming area and a localized coating of pressure-sensitive microcapsules containing a substantially colorless, image-forming reactant in the form of a color former or color-developer for forming a latent or visible image of a fingerprint in the designated print image-forming area. An image-developing device comprising a transparent film coated with a dual-functional adhesive composition comprising a pressure-sensitive adhesive containing an image-forming co-reactant in the form of a color developer or color former is used to form a protected visible image in the designated print image-forming area when applied to the fingerprint image.
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