Power toothbrush brushhead with fluid-directing member
CA 2834640 C · Owner: Koninklijke Philips Electronics, N.V. · Inventors: Lilley, Ronald C.; Hall, Scott E.; Miller, Kevin A.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The brushhead includes a brushhead member which includes a bristle field the , brushhead member being adapted for cleaning teeth as part of a power toothbrush, wherein the , brushhead in operation moves in a reciprocating action. In one embodiment at least two , paddle members are positioned on the brushhead member the paddle members each , being , straight substantially equal in size and extending substantially longitudinally of the, brushhead. The bristle field extends entirely around the paddle members the , paddle members , extending upwardly from a bristle base with the bristles the paddle members , being not as , high as the bristle field so that a shear-type fluid cleaning effect …
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
- Filed December 9, 2004 and granted June 30, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 9, 2024.
- Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
- 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.