Article displaying edgewise, angular multi-chromatic characteristics
US8158241B2 · kind B2 · utility
0Cited by
15References
31Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 11, 2004 |
| Grant date | Apr 17, 2012 |
| Priority date | — |
| Expiry date | Sep 19, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/24942
- WIPO fieldPharmaceuticals
- WIPO sectorChemistry
Abstract
The present invention is directed to an article of manufacture having differently colored layers which, when viewed from the edge, change color depending on the angle of view. The articles can be used in decorative or eye-catching displays suitable for displaying information or promoting objects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.