Split lid for sewage basins
US4832227A · kind A · utility
6Cited by
3References
3Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 24, 1988 |
| Grant date | May 23, 1989 |
| Priority date | — |
| Expiry date | Aug 24, 2008 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A10/30
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An improved lid for attachment to a sewage and waste water basin, which lid contains the safety provided by two sections having overlapping interlocking edges in which one section may be removed for access to the basin without the necessity of removing the other section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.