Security paper
US8449719B2 · kind B2 · utility
0Cited by
5References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 19, 2008 |
| Grant date | May 28, 2013 |
| Priority date | — |
| Expiry date | Feb 7, 2029 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB42D2035/36
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A security paper comprising a fibrous substrate comprising a watermark having repeating motifs, and a security structure that does not completely cover the watermark and has at least one semi-reflective area which is superposed at least partly on the watermark; which paper on the one hand allows observation, through the semi-reflective area, at least partially, of one of the motifs, and on the other hand allows observation at least partially of another of said motifs in a region of the watermark that is not covered by the security structure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.