Printed matter – Method
Patent
1996-05-28
1998-02-17
Han, Frances
Printed matter
Method
283114, B42D 1500
Patent
active
057184569
ABSTRACT:
A method for verifying the authenticity of a sales record, including the steps of: 1) providing a printer ribbon with an ink applied thereto, said ink having a first color and being capable of changing to a second color when acted upon by a reagent; 2) utilizing said printer ribbon to print sales records at the point of sale; and 3) verifying the authenticity of said sales records by exposing said sales records to a reagent capable of causing said ink to change to a second color identifiably distinct from said first color to identify as unauthentic any printing on said sales record not accomplished by said ink. Optionally, the ink used may be oil-based.
REFERENCES:
patent: 3995741 (1976-12-01), Henderson
patent: 4227719 (1980-10-01), McElligott et al.
patent: 4629630 (1986-12-01), Devrient
patent: 4725497 (1988-02-01), Honnorat et al.
patent: 4773778 (1988-09-01), Pietsch et al.
patent: 4884828 (1989-12-01), Burnham et al.
patent: 4931348 (1990-06-01), Kleuh et al.
patent: 5058925 (1991-10-01), Dotson
patent: 5062725 (1991-11-01), Hogarth et al.
patent: 5120088 (1992-06-01), Radcliffe et al.
patent: 5124217 (1992-06-01), Gruber et al.
patent: 5261954 (1993-11-01), Collings
patent: 5279222 (1994-01-01), Di Luco
patent: 5368334 (1994-11-01), Christy et al.
Detwiler, II Michael F.
Hodges Bryan
Detwiler, Jr. Michael F.
Han Frances
Vincent Douglas F.
LandOfFree
Method for verifying authenticity of sales record does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for verifying authenticity of sales record, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for verifying authenticity of sales record will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1779014