New coupling process
CA 2396743 A1 · Owner: Alvhall, Jorgen · Inventors: Ioannidis, Panagiotis; Edvardsson, Daniel; Alvhall, Jorgen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is provided a process for the production of a compound of formula (I) which process comprises reaction of a compound of formula (II) with a , compound of formula (III), wherein R1 R2, n and R3 have meanings given in the description.
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 January 30, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 30, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 30, 2023.
- 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.