Clean room safety hood
USD303166S · kind S · design
14Cited by
5References
1Claims
0Family size
Inventors
Key dates
| Filing date | Aug 25, 1986 |
| Grant date | Aug 29, 1989 |
| Priority date | — |
| Expiry date | Aug 29, 2003 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.