External part for a timepiece or piece of jewellery
US11224266B2 · kind B2 · utility
0Cited by
3References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Aug 31, 2018 |
| Grant date | Jan 18, 2022 |
| Priority date | — |
| Expiry date | Aug 31, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB82Y30/00
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
External part for a timepiece or piece of jewellery, this external part being produced by means of a polymer matrix in which piezochromic molecules are dispersed that change from a first stable state to a second stable state while changing colour under the effect of applied pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.