Air filtering self-propelled upright vacuum cleaner
US6308374A · kind A · utility
6Cited by
101References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2000 |
| Grant date | Oct 30, 2001 |
| Priority date | — |
| Expiry date | Apr 17, 2020 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L9/325
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
Disclosed is a unique and novel air filtering, self-propelled upright vacuum cleaner. The filtration system utilizes a HEPA-rated air filter as a final filtering element. The disclosed vacuum cleaner contains numerous other features including a self-propelled drive mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.