Security element
US7207490B2 · kind B2 · utility
7Cited by
7References
29Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 24, 2003 |
| Grant date | Apr 24, 2007 |
| Priority date | — |
| Expiry date | Aug 14, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB42D25/333
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A bar code is integrated in the paper in the form of a watermark. The fields (6) which separate the information-conveying bars of the bar code from each other are formed as watermarks. The information-conveying bars can be formed as watermarks, but they do not have to. Their width results from the spacing of the separating fields (6). The separating fields (6) are more narrow than the information-conveying bars, as a result of which the total length of the bar code is kept short.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.