Toothbrush
US6021541A · kind A · utility
35Cited by
1References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 1, 1998 |
| Grant date | Feb 8, 2000 |
| Priority date | — |
| Expiry date | Dec 1, 2018 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA46B2200/1066
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A toothbrush is manufactured by planting sheath/core type composite fibers in a planting base, wherein the sheath/core type composite fiber further comprises: a composite portion consisting of a sheath portion made from polyester resin and 2 to 5 of core portions made from polyamide resin dispersed therein having a predetermined length from a planted base portion; and 2 to 5 of exposed core filament portions obtained by exposing the core portions only having a predetermined length on an end side from the composite portion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.