Patent · US Expired

Brush head for toothbrush

US6574820B1 · kind B1 · utility

87Cited by
37References
26Claims
0Family size

Assignee

Inventors

Key dates

Filing dateOct 22, 1999
Grant dateJun 10, 2003
Priority date
Expiry dateOct 22, 2019

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61C17/3436
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

A head for a toothbrush including a neck and, first and second sets of one or more bristles each. The first and second sets are indirectly supported by the neck arid movable relative to each other such that at least one component of this relative movement causes the bristle(s) of the first set to be raised and/or lowered relative to the bristle(s) in the second set. The first and second sets of bristles both are movable relative to the neck.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.