Toothbrush having soft and hard bristles together

Details Toothbrush having soft and hard bristles together Toothbrush having soft and hard bristles together

2006-11-14

2006-11-14

Chin, Randall (Department: 1744)

Brushing, scrubbing, and general cleaning

Implements

Brush or broom

C015S207200, C015SDIG012

Reexamination Certificate

active

07134162

ABSTRACT:
Disclosed is a toothbrush having soft and hard bristles together. The toothbrush having soft and hard bristles with 6–10 mm in tapered length and 0.01–0.08 mm in diameter of end portions comprises: longer bristles(1) located at both edges; and shorter bristles(2) located at the central portion, wherein the bristles are generally in a semicircular form at their top portions when seen from a side, and a difference in length between the longer bristles(1) and the shorter bristles(2) is about 2–4 mm. The toothbrush can increase brushing efficiency and effectively remove foreign matters between teeth and inside periodontal pockets.

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patent: 6564416 (2003-05-01), Claire et al.
patent: 2002/0116778 (2002-08-01), Kwon
patent: WO 03/032772 (2003-04-01), None

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