Oscillatable toothbrush
CA 1279162 C · Owner: Gougeon, Robert J. · Inventors: Gougeon, Robert J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A toothbrush is provided with a handle having a mechanism for oscillating the bristles of the brush sideways. The mechanism comprises an elastic band stretch between the handle and the shaft of the toothbrush to retain their relative rotational orientation. It also comprises a plunger hingely mounted on the shaft of the toothbrush and off its longitudinal axis for producing a rotation of the toothbrush of about a quarter of a turn when depressed. The elastic band returns the mechanism to its original position when the plunger is released. This repeated action produces the oscillation of the bristles.
Read the whole patent
Listed from its CIPO record in Patent Yard's archive of Canadian patents past their term. Its claims, description and drawings are in the CIPO record and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Granted January 22, 1991. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended January 22, 2008.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.