Printed matter – Having revealable concealed information – fraud preventer or... – Utilizing chemical
Patent
1988-02-16
1989-08-01
Bell, Paul A.
Printed matter
Having revealable concealed information, fraud preventer or...
Utilizing chemical
40 16, 40299, 283105, 283901, 283 56, B42D 1500
Patent
active
048529125
ABSTRACT:
An advertising device formed of sheet material having a first and second portion, one of which includes a predetermined visual indicia formed thereon, and the other portion having a non-visible or latent image or indicia formed therein; whereby the latter is rendered visible by coating the latent image with a developing ink. This disclosure further contemplates a developing device for developing the latent or non-visible image or indicia, which includes a support arranged to receive the sheet of material so that the portion having non-visible or latent image is predeterminedly positioned at a developing station formed on the support adjacent to a source of a developing ink supply formed thereon. A carriage containing a roller is slidably supported on the support, whereby the reciprocation of the carriage relative to the support causes the roller to transfer the developing ink from the supply source to the sheet so as to coat the portion containing the non-visible or latent image or indicia to render the same visible.
REFERENCES:
patent: 1783022 (1930-11-01), Little
patent: 3850649 (1974-11-01), Buerkley et al.
patent: 4477593 (1984-10-01), Tomlinson
patent: 4601490 (1986-07-01), Brandon
Acme Spell Cash Coupon from Moline Dispatch, 9-5-62, Copy in 283/97.
Bell Paul A.
Fattibene Arthur T.
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