Watch case
US4620798A · kind A · utility
32Cited by
5References
18Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 5, 1984 |
| Grant date | Nov 4, 1986 |
| Priority date | — |
| Expiry date | Dec 5, 2004 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG04B37/086
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A watch case is described comprising a middle, a front plate and a back. The middle includes two concentric rings, an outer ring and an inner ring, with both being sandwiched between the front plate and the back. The inner ring provides support for the movement and the dial. The outer ring protects the watch and helps to enhance its appearance. The front plate and the outer ring are best made of hard material.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.