Toothbrushes
CA 2096339 A1 · Owner: Stewart, Timothy N. · Inventors: Stewart, Timothy N.; Stewart, Timothy N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to toothbrushes and is particularly with toothbrushes for bedridden patients. Cleaning of the teeth of bedridden patients is particularly difficult and especially the rinsing of the mouth. It is an object of the present invention to provide a toothbrush (1) that overcomes this difficulty an objective , that is met by a construction comprising a bristled head (3) and a handle (2), there being a fluid supply (5) means associated with the handle (2) and having an outlet emerging in the bristles (3) on the toothbrush head, the fluid supply means (5) being connectable to a source of fluid, and there being a separate means of fluid disposal (7) associated with the handle …
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 November 12, 1991. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 12, 2011.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 12, 2013.
- 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.