Marker strip surface for roadways and the like
US4969713A · kind A · utility
25Cited by
8References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 12, 1988 |
| Grant date | Nov 13, 1990 |
| Priority date | — |
| Expiry date | Dec 12, 2008 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE01F9/512
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An improved retro-reflective beaded roadway marker strip and the like, formed of successive spaced segmented wedges as rows of trapezoidal blocks containing retro-reflective beads at least on their inclined front, side and rear surfaces and with the blocks of successive rows staggered; the strip being preferably formed of a bottom rubber-like non-memory surface and an upper crosslinked elastomeric self-restoring surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.