Canadian application, no grantCanada
Process of preparing substituted acrylamides
CA 2272380 A1 · Owner: Eli Lilly And Company · Inventors: Hay, Lynne Ann; Mitchell, 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
The present invention relates to a process for preparing acrylamides; wherein a propiolamide is reacted with an activated aromatic ring to yield a wide variety of acrylamides.
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 21, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 21, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 21, 2019.
- 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 21, 1997
GrantedNo grant recorded
Term endedNovember 21, 2017
Patent numberCA 2272380 A1
Classification (IPC)C07C233/00 +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.