Compositions and methods for mucosal delivery
CA 2358524 A1 · Owner: Lavipharm Laboratories, Inc. · Inventors: Pfister, William R.; Chen, Li-Lan H.; Renn, Donald W.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A dosage unit comprising a water-soluble hydrocolloid and a mucosal surfacecoat-forming, such film including an effective dose of active agent. In the dosage unit slidenafil citrate, nicotine hydromorphone, oxybutynine or , estradiol are used as active agents.
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 December 30, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended December 30, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 30, 2021.
- 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.