Watch crystal having an optical effect and watch fitted with such a crystal
US7581873B2 · kind B2 · utility
1Cited by
10References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 15, 2005 |
| Grant date | Sep 1, 2009 |
| Priority date | — |
| Expiry date | Apr 1, 2026 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04G9/00
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The invention concerns a watch including a case fitted with a glass and containing display means able to be observed through the glass, characterised in that said glass is made from a plate formed of a fiber optic group.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.