Tamper-indicating sheet

Details Tamper-indicating sheet Tamper-indicating sheet

1979-01-29

1983-10-04

Dixon, Jr., William R.

Flexible bags

Tamper indicating

283 94, 283 95, 427 7, 428 35, 428916, 521 54, 524274, B65D 3000, B42D 1500, B41M 314, C08J 916

Patent

active

044074433

ABSTRACT:
A novel lottery ticket comprising a blush-type coating which coating is characterized by susceptibility to a change in appearance when exposed to either (a) any of a wide spectrum of organic solvents or (b) an elevated temperature. Such susceptibility reveals that solvent or thermal techniques have been used in tampering with the ticket or a pouch package in which the ticket is held. Such tampering is often the result of an illicit attempt to obtain information about the indicia printed on the ticket.

REFERENCES:
patent: 3414998 (1968-12-01), Berger
patent: 3460743 (1969-08-01), Burnett
patent: 3702920 (1972-11-01), Taylor
patent: 3900219 (1975-08-01), D'Amato et al.
patent: 3930673 (1976-01-01), Sanden
patent: 3931061 (1976-01-01), Kohne Jr. et al.
patent: 3956049 (1976-05-01), Johnsen
patent: 4007141 (1977-02-01), Wismer et al.
patent: 4033611 (1977-07-01), Johnsen
patent: 4074911 (1978-02-01), Stipek, Jr.
patent: 4120445 (1978-10-01), Carrier et al.

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