NO.sub.x -cleaning paving block
US5861205A · kind A · utility
26Cited by
5References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 24, 1997 |
| Grant date | Jan 19, 1999 |
| Priority date | — |
| Expiry date | Jan 24, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/256
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An NO.sub.x -cleaning paving block comprising a surface layer which contains titanium dioxide and which is layered on a concrete-made base layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.