Electric toothbrushes
CA 1330383 C · Owner: Scherer, Benjamin · Inventors: Scherer, Benjamin
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An electric toothbrush has a reciprocating connecting rod in a brush member. The brush member is constructed as a brush head at its front end and has there two rows of rotatable bristle holders which each engage with a cam in a transversely running groove in the connecting rod. Rectilinear movement of the connecting rod leads to an alternating rotating movement of the bristle holders.
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 June 28, 1994. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended June 28, 2011.
- 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.