Identity card

Details Identity card Identity card

1979-08-29

1981-11-03

Bell, Paul A.

Printed matter

Calendar

40 22, 283 8R, 283 9R, G09F 302, B42D 1500

Patent

active

042982170

ABSTRACT:
The application discloses an identity card consisting of a plurality of layers, of which the cover layers are highly transparent films and the layers of the card core are films of moderate to low transparency, as a result of added pigment. One core layer carries information, which can be read directly, if desired, above a security print, while the other core layer has an additional security marking, such as a guilloche print, a marking which can be read optically only with the aid of a special lamp, or a piece of magnetic tape. All the layers consist of polymers which can be fused together to form a laminate which is fused together like a monolithic block and which does not have any interfaces which allow a mechanical, thermal or chemical separation.

REFERENCES:
patent: 3068140 (1962-12-01), Biddle
patent: 3279826 (1966-10-01), Rudershausen et al.
patent: 3457661 (1969-07-01), Peters
patent: 3461581 (1969-08-01), Hoffmann
patent: 3897964 (1975-08-01), Oka et al.
patent: 4092449 (1978-05-01), Bernstein
patent: 4096015 (1978-06-01), Kawamata et al.
patent: 4151667 (1979-05-01), Idelson et al.

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