Temperature indicator for motor vehicle
US6592255B1 · kind B1 · utility
10Cited by
14References
36Claims
0Family size
Inventors
Key dates
| Filing date | Sep 23, 1999 |
| Grant date | Jul 15, 2003 |
| Priority date | — |
| Expiry date | Sep 23, 2019 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB60R2001/123
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A temperature indicator for a motor vehicle arranged to indicate, to the driver of the vehicle, the ambient temperature either inside or outside the vehicle. The temperature indicator comprises thermochromic material (36-46) applied to the reflective member (30) of a rear view mirror (10) and arranged in a line, locations along which are arranged to change colour at successively increasing temperatures. The line of thermochromic material (36-46) may be positioned to separate zones (32, 34) of the reflective member which differ in curvature.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.