Electric vacuum cleaner
USD324928S · kind S · design
0Cited by
5References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1991 |
| Grant date | Mar 24, 1992 |
| Priority date | — |
| Expiry date | Mar 24, 2006 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.