Printed security device and method
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United States of America Patent
Stats
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Jul 19, 2005
Grant Date -
Apr 1, 2004
app pub date -
Sep 27, 2002
filing date -
Sep 24, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
According to one aspect of the invention, a printed security device for a document comprises an intaglio printed latent image which has been printed onto a substrate using a highly reflective ink, wherein the intaglio printed latent image is visible when viewed within a first angle range extending from near-vertical to the plane of the latent image towards the image and also within a second angle range closer to the plane of the image, and is not visible when viewed within an angle range between the first and second angle ranges. A change in viewing angle from one angle range to an adjacent angle range results in a visible latent image becoming invisible or vice versa (creating a flip-flop image visibility effect). According to another aspect of the invention a non-intaglio printed second image is added, preferably between the substrate and the intaglio printed latent image, wherein the second image is visible when viewed within an angle range between the first and second angle ranges of visibility of the intaglio printed latent image and is not visible when viewed at other angles. The flip-flop image visibility effect is thereby enhanced such that distinct images (viz. the intaglio latent image and non-intaglio image) are viewed as the viewing angle of the security device moves from near-vertical to near-horizontal angles.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- CANADIAN BANK NOTE COMPANY, LIMITED
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Lyen, Eric A | Ottawa, CA | 3 | 20 |
Suzzarini, Laurence M -F | Ottawa, CA | 1 | 1 |
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Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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