Surface cleaning apparatus
US10716448B2 · kind B2 · utility
2Cited by
16References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 22, 2017 |
| Grant date | Jul 21, 2020 |
| Priority date | — |
| Expiry date | Apr 5, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB04C2009/008
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A surface cleaning apparatus, such as an extractor, has a liquid delivery system operable to alternately deliver a carpet cleaning solution and a hard floor cleaning solution.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.