Toothbrush having cleaning elements forming a contoured cleaning profile
CA 2575767 C · Owner: Sorrentino, Alan V. · Inventors: Sorrentino, Alan V.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A toothbrush that provides enhanced cleaning and oral care to a user. The toothbrush has a head with cleaning elements that create a contoured cleaning profile. The cleaning elements have different depths of insertion relative to a reference plane to define a contoured cleaning profile without post-fixing trimming of the cleaning elements. Accordingly tapered bristles can be used , to define a contoured cleaning profile. Alternatively tapered bristles of , different lengths can also be used to form a contoured cleaning profile.
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 October 25, 2005 and granted August 20, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 25, 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.