Yellow retroreflective pavement markings
US5286682A · kind A · utility
52Cited by
5References
28Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 19, 1992 |
| Grant date | Feb 15, 1994 |
| Priority date | — |
| Expiry date | Feb 19, 2012 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01F9/506
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A pavement marking that has yellow-tinted, retroreflective beads partially embedded in a bead-carrier medium. The bead-carrier medium contains 0.5 to 15 volume percent of a light-scattering agent that scatters white light. The pavement marking is able to retroreflect a distinct yellow color at nighttime without using yellow pigments that contain the potentially-toxic metals, cadmium, chromium, and lead.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.