Value-bearing document with window
US6508489B2 · kind B2 · utility
16Cited by
13References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 7, 2001 |
| Grant date | Jan 21, 2003 |
| Priority date | — |
| Expiry date | Jun 7, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S428/916
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
Proposed is a value-bearing document in which the carrier is provided with a window-like opening which is closed by a cover foil which is transparent at least in a region-wise manner, wherein particularly in the region of the window-like opening, the cover foil can be provided with additional security features, for example diffraction structures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.