Canadian application, no grantCanada
Preparation of substituted piperidin-4-ones
CA 2370491 A1 · Owner: Eli Lilly And Company · Inventors: Staszak, Michael Alexander; Zhang, Tony Yantao; Rizzo, John Robert
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 provides a novel process for the preparation of substituted piperidin-4-ones useful as intermediates in the preparation of pharmaceuticals.
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 June 13, 2000. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 13, 2020.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 13, 2022.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 13, 2000
GrantedNo grant recorded
Term endedJune 13, 2020
Patent numberCA 2370491 A1
Classification (IPC)C07D211/74 +1 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.