Claims
- 1. In a data carrier such as check paper or the like having a picture theme printed thereon and also having a security pattern printed thereon, the improvement comprising a picture theme overlapped by a negative security pattern which is formed by interruptions of the printed picture theme and which is geometrically similar or identical to the form of the printed security pattern, and the printed security pattern is printed congruently into the contour of said negative security pattern.
- 2. The data carrier of claim 1 in which said printed security and negative security patterns are line patterns.
- 3. The data carrier of claim 2 in which the line patterns are guilloche patterns.
- 4. The data carrier of claim 2 in which the lines of said negative security pattern are of greater width than the lines of said printed security pattern.
- 5. The data carrier of claim 4, in which the lines of said negative security pattern are approximately three times as wide as the lines of the printed security pattern.
- 6. The data carrier of claim 4 in which the areas of said negative security pattern not covered by said printed security pattern provide visual contrast with said printed security pattern.
- 7. The data carrier of claim 1 in which the picture theme and the printed security pattern are of the same color.
- 8. The data carrier of claim 1 in which the printed security pattern is disposed over the total printed area of the data carrier.
- 9. The data carrier of claim 1 in which the picture theme is printed in one color and the rest of the printed area of the data carrier is printed in another color and both areas are interrupted by a continuous negative security pattern and the printed security pattern is printed into the contour of the negative security pattern.
- 10. The data carrier of claim 1 in which the picture theme is printed on in the form of a line copy.
- 11. The data carrier of claim 1 in which one part of the printed security pattern is printed in one color and the rest of the printed security pattern is printed in another color.
- 12. The data carrier of claim 1 in which the color of the surface of the data carrier on which the picture theme is printed provides visual contrast with the ink with which said picture theme is printed.
Priority Claims (1)
Number |
Date |
Country |
Kind |
3038179 |
Oct 1980 |
DEX |
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SPECIFIC DESCRIPTION
This is a division of application Ser. No. 307,981 filed Oct. 2, 1981 now U.S. Pat. No. 4,459,020 the text of which is hereby incorporated by reference.
US Referenced Citations (7)
Foreign Referenced Citations (5)
Number |
Date |
Country |
503863 |
Sep 1979 |
AUX |
1066109 |
Nov 1979 |
CAX |
1070731 |
Jan 1980 |
CAX |
1231215 |
May 1972 |
GBX |
2044675 |
Oct 1980 |
GBX |
Divisions (1)
|
Number |
Date |
Country |
Parent |
307981 |
Oct 1981 |
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