Protected document and method of making same

Details Protected document and method of making same Protected document and method of making same

1980-07-23

1982-01-12

Bell, Paul A.

Printed matter

Calendar

283 8R, 355133, B42D 1500

Patent

active

043101801

ABSTRACT:
Disclosed is a protected document such as a negotiable instrument, a title instrument, identification document or other documents which should be kept secure from illegal copying by color copiers. The method of making the document comprising preprinting a "void" or other warning or cancellation phrase pattern in half tone or multitone on the document and camouflaging this pattern is also disclosed.

REFERENCES:
patent: 776515 (1904-12-01), Ives
patent: 1002600 (1911-09-01), Morris et al.
patent: 1114346 (1914-10-01), Farmer
patent: 1428278 (1922-09-01), Dow
patent: 1689302 (1928-10-01), Smith
patent: 1692405 (1928-11-01), Freeman
patent: 3675948 (1972-07-01), Wicker
patent: 3852088 (1974-12-01), Godlewski et al.
patent: 3887742 (1975-06-01), Reinnagel
patent: 4025673 (1977-05-01), Reinnagel
Memo of the Xerox Corporation dated May 22, 1975, from R. F. Lehman to A. Morganstein.
McDonald's Gift Certificate.
Sample of "Kids Paper" by McGhee printing service of Stamford, Conn.

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