External element of metallic appearance having an integral communication system
US11300931B2 · kind B2 · utility
0Cited by
2References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 12, 2017 |
| Grant date | Apr 12, 2022 |
| Priority date | — |
| Expiry date | Nov 9, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/80
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An external element of a timepiece or a piece of jewelry includes a body made of an insulating ceramic material, the body including a housing, a wireless communication system disposed in the housing, and at least one part of a surface of the external element includes a layer of metallic visual appearance, the layer being obtained by carburization, nitridation, or a combination of carburization, nitridation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.