Upper portion of a vacuum cleaner
USD313681S · kind S · design
54Cited by
6References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 27, 1989 |
| Grant date | Jan 8, 1991 |
| Priority date | — |
| Expiry date | Jan 8, 2005 |
Classification
- Technology area (CPC —)General
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.