Security paper
US6911115B2 · kind B2 · utility
5Cited by
17References
32Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 1, 2001 |
| Grant date | Jun 28, 2005 |
| Priority date | — |
| Expiry date | Feb 1, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/916
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Security paper (1) has a security zone (2) for providing protection against mechanical falsification. The security zone comprises a set of cells (3) indented in the paper and optionally interconnected by indented link portions, the thickness of the paper being substantially uniform throughout its area that is complementary to the cells (3) and to the link portions in the security zone (2).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.