Play area surface treatment
US5525416A · kind A · utility
18Cited by
11References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 17, 1995 |
| Grant date | Jun 11, 1996 |
| Priority date | — |
| Expiry date | Apr 17, 2015 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T442/153
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
A play area surface treatment is provided comprising, from top to bottom: a layer of polymeric mesh, a layer of landscape separator, six inches of ground rubber buffing, a second layer of landscape separator, and six inches of pea gravel as a base material. Additionally, a protective edging is provided which is attached to the top layer of nylon woven mesh and provides a protective edging surrounding the play area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.