Preparation of sterile aqueous suspensions comprising micronised crystalline active ingredients for inhalation
CA 2510263 C · Owner: Chiesi Farmaceutici S.P.A. · Inventors: Pivetti, Fausto; Capocchi, Andrea
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is a process for the preparation of sterile aqueous suspensions based on active ingredients in the form of micronised crystalline particles designed for administration by inhalation. In particular a process for the , preparation of sterile aqueous suspensions based on pharmaceutical active ingredients in the form of crystalline hydrates is 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 December 17, 2003 and granted July 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 17, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 17, 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.
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.