Medicinal tablet with prolonged release of the active principle
CA 2445200 C · Owner: Dupinay, Pierre · Inventors: Dupinay, Pierre; Capon, Christine; Torres, Robert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns a medicinal tablet to be sucked made with boiled sugar of solid consistency designed to dissolve in the buccal cavity comprising at least an active principle. The invention is characterised in that it further comprises at least a matrix agent for slowing down the release of the active principle(s) which therefore remain in prolonged contact with the region of the mouth and the pharynx the dissolving time in the buccal cavity being at least 15 minutes.
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 April 25, 2002 and granted September 6, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 25, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 25, 2024.
- 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.