Combined toothbrush and gum massage device
CA 1197357 A · Owner: Colgate-Palmolive Company · Inventors: Mark, Reuben
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dental hygiene device for toothbrushing and gum massage comprises an elongated handle on which a bristle carrying head is pivotable for movement between a first operating position in alignment with the length of the handle and a second operating position at right angles to the length of said handle there being, a rib and groove arrangement for locking the head in either of those positions during normal toothbrushing and/or gum massaging operations but being readily responsive to torque applied by a user to turn the head from one position to another. The head has a central area of tooth engaging hard bristles with areas of, softer bristles at the ends for effective gum massaging.
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 December 3, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended December 3, 2002.
- 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.