Printed matter – Having revealable concealed information – fraud preventer or... – Identifier
Patent
1985-04-23
1987-02-24
Spruill, Robert L.
Printed matter
Having revealable concealed information, fraud preventer or...
Identifier
283 80, 283 53, 283 57, 283 58, G09F 300
Patent
active
046452400
ABSTRACT:
This invention relates to documents, such as banknotes, which are produced and used in large numbers and which, for a given series, are identical one with another except for a unique multi-digit number upon each individual document, the number thus uniquely identifying that document within the series. According to the present invention, to render unauthorized reproduction of the document more difficult, on each document, at least two characters in the identifying number differ from each other (in addition to any differences in the letters or digits which they represent) in one or more visible characteristics. Thus the differing characters may have different heights or widths or be in different styles of type. Preferably, the identifying number appears twice on each document, in diagonally opposite corners, and preferably the variation of physical characteristics of the characters along the length of one of the numbers is reversed in direction in the other of the numbers.
REFERENCES:
patent: 381105 (1888-04-01), Black
patent: 489561 (1893-01-01), Hopkins
patent: 1564296 (1920-03-01), Tiefel
patent: 1833391 (1928-12-01), De Giorgio
patent: 2842054 (1958-07-01), Monger
patent: 4234214 (1980-11-01), Lee
Force Co., 1000 S F M Universal Rotary Numbering Head Component System, received Jan. 13, 1964, pp. 32-33.
Bratchley Robin
Haslop John M.
Whitehead Colin J.
Kemon Solon B.
Ross Taylor J.
Spruill Robert L.
Thomas de la Rue and Company Limited
LandOfFree
Numbered documents does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Numbered documents, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Numbered documents will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-104900