Self-assembled personalized hidden message device

Details Self-assembled personalized hidden message device Self-assembled personalized hidden message device

1989-07-28

1991-02-19

Bell, Paul A.

Printed matter

Having revealable concealed information, fraud preventer or...

By removeable material

283108, 283109, 283110, 283111, 283901, 283903, B42D 1500

Patent

active

049937537

ABSTRACT:
A self-assembled personalized message device including a base substrate with one or more blank areas on which messages can be written; a transparent cover sheet for covering the message areas, a material for adhering the cover sheet to the substrate, and a removable, opaque coating on the cover sheet for obscuring the message area when the cover sheet is adhered to the substrate in which the opaque material is capable of being rubbed off the cover sheet to selectively reveal the message written in the message areas.

REFERENCES:
patent: 3950013 (1976-04-01), Tagliaferri
patent: 4273362 (1981-06-01), Carrier et al.
patent: 4693496 (1987-09-01), Leonetti et al.
patent: 4708369 (1987-11-01), Greig
patent: 4778153 (1988-10-01), Bachman
patent: 4850618 (1989-07-01), Halladay

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