Patent · US Expired

Toothbrush

US7696728B2 · kind B2 · utility

20Cited by
5References
21Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 2, 2004
Grant dateApr 13, 2010
Priority date
Expiry dateNov 20, 2024

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH02J7/345
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A combination of an electrically powered toothbrush incorporating an electric power supply which comprises a capacitor, and a charging unit which incorporates one or more replaceable or rechargeable battery cells, enabling recharging of the capacitor without connection to the main electricity supply.

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