Time piece with changable color face
US6639875B2 · kind B2 · utility
8Cited by
7References
6Claims
0Family size
Inventor
Key dates
| Filing date | Aug 9, 2001 |
| Grant date | Oct 28, 2003 |
| Priority date | — |
| Expiry date | Aug 9, 2021 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04G9/0082
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A timepiece that has an LCD face that changes color when the time changes between the A.M. and the P.M. to provide a pleasing esthetic appearance to the user. Further, the timepiece may have a manual control such as a button that may be depressed to cause the LCD face to change to any one of several colors as desired by the user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.