Expired Canadian patentCanada
Nanoparticulate megestrol formulations
CA 2481390 C · Owner: Elan Pharma International Ltd. · Inventors: Ryde, Tuula; Pruitt, John; Hovey, Douglas
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to nanoparticulate compositions comprising megestrol. The megestrol particles of the composition have an effective average particle size of less than about 2000 nm.
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 14, 2003 and granted November 27, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 14, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 14, 2025.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 14, 2003
GrantedNovember 27, 2012
Term endedApril 14, 2023
Patent numberCA 2481390 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.