Brush configuration for a powered skin cleansing brush appliance
CA 2586180 C · Owner: Pilcher, Kenneth A. · Inventors: Akridge, Robert E.; Pilcher, Kenneth A.; Schumaker, David B.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The bristle arrangement includes a first brush portion (14) which has a first set of bristles, the first brush portion (14) being arranged in an annular configuration, and remains stationary in operation of the appliance. The bristle arrangement also includes a second brush portion (16) which has a second set of bristles, wherein the second brush portion (16) oscillates at a selected frequency. The second set of bristles has a circular arrangement fitting within the opening of the annular arrangement of the first set of bristles. The first and second sets of bristles have a diameter within the range of 3 mils to 5 mils, and a length in the range of 0.3 to 0.425 inches. The first …
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 June 21, 2005 and granted August 13, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 21, 2025.
- 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.