Patent · US Expired

Electric toothbrush

US5943723A · kind A · utility

83Cited by
3References
6Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 28, 1998
Grant dateAug 31, 1999
Priority date
Expiry dateApr 28, 2018

Classification

  • Technology area (CPC A)Human Necessities
  • CPC primaryA61C2204/002
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

The invention is directed to an electric toothbrush (1) in which a timing element (13) is provided whose purpose it is to indicate to a user the end of at least one cleaning period when the electric toothbrush (1) is activated. Still further, means (12) coupled to the timing element (13) are provided to enable the user to trigger the beginning (T4) of the cleaning period (PZD2). The effect thereby achieved is that the end (T2) of a cleaning period (PZD1) does not automatically start the beginning (T4) of the next cleaning period (PZD2), but that this particular beginning (T4) of the next cleaning period (PZD2) is freely selectable by the user.

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