Security element
US8603615B2 · kind B2 · utility
7Cited by
6References
23Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 10, 2008 |
| Grant date | Dec 10, 2013 |
| Priority date | — |
| Expiry date | Dec 1, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24917
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The present invention relates to a multilayer security element having a first, transparent layer structure having first, translucent sub-regions and a second, opaque layer structure exhibiting a color-shift effect and having second, transparent sub-regions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.