Carpet scrubber with improved brush
US4267617A · kind A · utility
18Cited by
6References
1Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 16, 1979 |
| Grant date | May 19, 1981 |
| Priority date | — |
| Expiry date | Jul 16, 1999 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA47L11/34
- WIPO fieldFurniture, games
- WIPO sectorOther fields
Abstract
A new and improved brush for a carpet scrubber with a flat, even continuous outer bristle extremity.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.