Device
US10631623B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jan 16, 2017 |
| Grant date | Apr 28, 2020 |
| Priority date | — |
| Expiry date | Apr 17, 2037 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA46B2200/1066
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A toothbrush head having a bristle surface with tufts of bristles extending therefrom comprising: first tufts of a mixture of co-extruded bristles and unitary bristles located adjacent to the distal end of the bristle surface; second tufts comprising a mixture of co-extruded bristles and unitary bristles located adjacent to the proximal end of the bristle surface; third tufts comprising tapered bristles located adjacent to the widthways opposite sides of the bristle surface; and fourth tufts comprising a mixture of co-extruded bristles and tapered bristles longer than the co-extruded bristles located as a cluster of fourth tufts widthways between the third tufts and longitudinally between the first and second tufts.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.