Security support with an imprinted micropattern contained therei

Details Security support with an imprinted micropattern contained therei Security support with an imprinted micropattern contained therei

1996-07-30

1999-05-18

Howell, Daniel W.

Printed matter

Having revealable concealed information, fraud preventer or...

Utilizing electromagnetic radiation

283 57, 283 93, 283 95, 283 96, 283901, 283902, B42D15/00

Patent

active

059043750

ABSTRACT:
A support of paper or the like is imprinted with a security micropattern which prevents falsification of documents printed on the support by use of high resolution copier machines. The security micropattern is printed with ink which is transparent or of the same coloration as the support. The ink comprising the micropattern is either non-absorbent or hydrophilic, and the ink used for inscribing on the support is either hydrophilic or non-absorbent, respectively.

REFERENCES:
patent: 3088841 (1963-05-01), Guertin
patent: 5078428 (1992-01-01), Maeno
patent: 5149140 (1992-09-01), Mowry, Jr. et al.
patent: 5171040 (1992-12-01), Orndorff
patent: 5197765 (1993-03-01), Mowry, Jr. et al.
patent: 5297815 (1994-03-01), Anderson et al.
patent: 5340159 (1994-08-01), Mowry, Jr.
patent: 5368334 (1994-11-01), Christy et al.
patent: 5374976 (1994-12-01), Spannenburg
patent: 5375886 (1994-12-01), Tsuchiya
patent: 5429392 (1995-07-01), Loving

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