Extraction cleaner
US11607100B2 · kind B2 · utility
0Cited by
20References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Aug 1, 2019 |
| Grant date | Mar 21, 2023 |
| Priority date | — |
| Expiry date | Mar 2, 2041 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L11/4088
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
An extraction cleaner for a floor surface includes an extraction nozzle. The extraction nozzle that defines a fluid flow path having an elongated nozzle opening, and includes one or more stiffening elements that stiffens the walls around the nozzle opening to prevent collapsing or deformation of the extraction nozzle during use.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.