Patent · US Active

Light signalling slab and system capable of using such a slab

US10774486B2 · kind B2 · utility

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20Claims
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Key dates

Filing dateFeb 15, 2018
Grant dateSep 15, 2020
Priority date
Expiry dateFeb 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.