Plastic identity card capable of providing an inkless fingerprin

Details Plastic identity card capable of providing an inkless fingerprin Plastic identity card capable of providing an inkless fingerprin

1986-05-27

1987-11-10

Bell, Paul A.

Printed matter

Method

Fingerprint

283 78, 283904, 427 1, B42D 1500, A61B 510

Patent

active

047052996

ABSTRACT:
A plastic identity card is provided with an ink absorbent coating over a preassigned space thereon. The ink absorbent coating includes a chemical reagent capable of chemically reacting with a substantially colorless developer solution applied by a finger thereto to provide a perceivable colorant product representative of the fingerprint ridge pattern.

REFERENCES:
patent: 1499955 (1924-07-01), Stoddard
patent: 2020376 (1935-11-01), Rich
patent: 2712514 (1955-07-01), English, Jr.
patent: 3408217 (1968-10-01), Obuchi
patent: 3412493 (1968-11-01), French
patent: 3664910 (1972-05-01), Hollie
patent: 4029012 (1977-06-01), Smith et al.
patent: 4325570 (1982-04-01), Estrada
patent: 4504408 (1985-03-01), Morton
patent: 4557964 (1985-12-01), Magmotta

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