Amorphous atorvastatin calcium or pravastatin sodium hmg-coa reductase inhibitors of desired particle size
CA 2479005 C · Owner: Ganesh, Sambasivam · Inventors: Poornaprajna, Acharya; Chandrappa, Ravindra; Sridharan, Madhavan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for the preparation of amorphous HMG-CoA reductase inhibitor and its hydrates thereof of desired particle size which comprises: (a) dissolving the , HMG-CoA reductase inhibitor in a hydroxylic solvent; (b) removing the solvent by freeze-drying.
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 March 18, 2002 and granted May 22, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 18, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 18, 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.