Cleaning unit for collecting debris in a swimming pool
USD309965S · kind S · design
6Cited by
3References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 7, 1986 |
| Grant date | Aug 14, 1990 |
| Priority date | — |
| Expiry date | Aug 14, 2004 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.