Expired Canadian patentCanada
Melt-extruded orally administrable therapeutically active formulations
CA 2204180 C · Owner: Huang, Hua-Pin · Inventors: Chasin, Mark; Oshlack, Benjamin; Sackler, David
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Bioavailable sustained release oral opioid analgesic dosage forms comprising , a plurality of multiparticulates produced via melt extrusion techniques are disclosed.
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 3, 1995 and granted October 31, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 3, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 3, 2017.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 3, 1995
GrantedOctober 31, 2000
Term endedNovember 3, 2015
Patent numberCA 2204180 C
Classification (IPC)A61K9/14 +2 more
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.