Fingerprinting system and method

• US 5,114,188 A
• Filed: 11/20/1989
• Issued: 05/19/1992
• Est. Priority Date: 11/20/1989
• Status: Expired due to Fees

• Current Assignee: ARLEDGE, ARNOLD G. P.O. BOX 1062, Inkless Concepts Incorporated, Robin D. Fridrich
• Original Assignee: Robin D. Fridrich
• Inventors: Koch, John J.
• Primary Examiner(s): Bell, Paul A.
• Application Number:
  US07/439,605
• Time in Patent Office: 911 Days
• Field of Search: 283/68, 283/78, 283/100, 283/103, 283/104, 283/69, 282/1 R, 282/8 R, 282/9 R, 462/84, 462/8, 462/17
• US Class Current: 283/68
• CPC Class Codes: A61B 5/1172 using fingerprinting

Abstract

A system and method for taking and developing a fingerprint wherein the subject'"'"'s fingers are not dirtied or exposed to chemicals. The fingerprint is recorded on a layer of adhesive adhered to a sheet of transparent material. The print is developed by making a copy of it on a sensitized surface by back reflecting radiant energy through the adhesive whereby the print is imaged.

Claims

1. A fingerprinting method which comprises:

a) taking a fingerprint on a sheet of transparent material having front and rear sides, said front side coated with a film of adhesive sensitive to record a fingerprint;

b) positioning a reflective surface which will photocopy black on the rear side of the sheet behind the fingerprint; and

,

c) making a photocopy of the fingerprint on the front side of the sheet whereby the copy of the fingerprint will be white on a black background.

2. The fingerprint method of claim 1 wherein the sheet of transparent material covers a window in an extension tab attached to a credit card invoice, said invoice and said extension tab having indicia for correlating them.

3. The fingerprinting method of claim 1 wherein the reflective surface is a member selected from the group consisting of a mirror, a polished metal surface and a polished dark surface which will photocopy black.

4. The fingerprinting method of claim 3 wherein the sheet of transparent material is made of polyethylene terephthalate and is from 1 mil to 10 mil thick.

5. The fingerprinting method of claim 4 wherein the adhesive is a thermoset acrylic copolymer and is from 1 mil to 2 mil thick.