Patent 6360395 Issued on March 26, 2002. Estimated Expiration Date: January 22, 2021. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
An electric toothbrush having an elongated body having a handle portion, a head portion, and an elongated intermediate portion disposed between the handle portion and the head portion. The head portion includes a static bristle portion and a moving bristle portion. The static bristle portion and the moving bristle portion are disposed along a common longitudinal axis relative to the head portion. The head portion and intermediate portion are dimensioned for disposition in a human user's mouth for brushing of teeth. A motor is disposed in the handle portion and operatively connected to the moving bristles for moving the moving bristles.
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Bader, Herbert I., "Review of Currently Available Battery-Operated Toothbrushes", Compendium Continuing Education in Dentistry, vol. XIII, No. 12, Dec. 1992, pp. 1162-116