Multi-level bristle tuft toothbrush
US5392483A · kind A · utility
273Cited by
16References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 7, 1994 |
| Grant date | Feb 28, 1995 |
| Priority date | — |
| Expiry date | Jul 7, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S15/05
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A toothbrush is described whose head has a special arrangement of bristle tufts. The arrangement includes a fan-shaped grouping of tufts along left and right edges of the head. Near front and rear ends of the head are a grouping of tufts whose free ends are trimmed to define respective planes slanting downwardly towards the interior area of the head. Within the interior area is a further grouping of tufts arranged in a saddle-shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.