Umbrella
USD306093S · kind S · design
14Cited by
2References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 8, 1987 |
| Grant date | Feb 20, 1990 |
| Priority date | — |
| Expiry date | Feb 20, 2004 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.