Apparatus and method for viewing multiple underlying indicia
US7649689B2 · kind B2 · utility
1Cited by
2References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 28, 2006 |
| Grant date | Jan 19, 2010 |
| Priority date | — |
| Expiry date | Aug 28, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09F19/14
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A promotional or novelty piece wherein a printed planar surface is provided with a translucent lenticular surface, placed in registration with a second planar surface with predetermined indicia applied so as to underlie and register with said translucent surface. The angle of the viewer's eye with said translucent surface allows said underlying indicia and secondary interlaced indicia having been applied to the underside of said lenticular lens, to be selectively and individually observed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.