Toothbrush having diverse cleaning element arrangement
CA 2737847 C · Owner: The Gillette Company Llc · Inventors: Braun, Philip M.; Masterman, Thomas Craig; Brown, William Ralph, Jr.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to a toothbrush which includes a head and tooth , cleaning elements extending from a top surface of the head. The toothbrush has a diverse cleaning element , arrangement, wherein one of the groups of the tooth cleaning elements located toward the inside , of the head, and is made of a thermoplastic elastomer and comprises a , plurality of curved walls and/or fins or substructures, which are unitary with one another.
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 4, 2004 and granted August 6, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 4, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 4, 2026.
- 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.