Modular drainage channel
USD299543S · kind S · design
19Cited by
2References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 8, 1986 |
| Grant date | Jan 24, 1989 |
| Priority date | — |
| Expiry date | Jan 24, 2003 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.