Light signalling slab and system capable of using such a slab
US10774486B2 · kind B2 · utility
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20Claims
0Family size
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Key dates
| Filing date | Feb 15, 2018 |
| Grant date | Sep 15, 2020 |
| Priority date | — |
| Expiry date | Feb 15, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02E10/50
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
The invention relates to a one-piece light signalling slab (2) comprising a structure with a plurality of layers that are superposed and attached together, said structure comprising:
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.