Escape route marking in vehicles
US12214897B2 · kind B2 · utility
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1References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 17, 2021 |
| Grant date | Feb 4, 2025 |
| Priority date | — |
| Expiry date | Aug 17, 2041 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B20/30
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An illumination element marks escape routes in vehicles. The illumination element includes a planar substrate, which has: a base surface configured for fastening on a first side; and at least one planar electrical lighting element on a second side. A ratio of a surface area of the base surface to a thickness of the illumination element is greater than 500 mm, and a ratio of the surface area of the base surface to a mass of the illumination element is greater than 100 mm2/g.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.