Pyrazolyl-substituted thienyloxypyridines
CA 2459359 A1 · Owner: Misslitz, Ulf · Inventors: Hofmann, Michael; Misslitz, Ulf; Witschel, Matthias
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to pyrazolyl-substituted thienyloxypyridines of formula (I)in which the variables have the following meanings: R1 R3 = H, halogen, cyano, nitro, alkyl, haloalkyl alkoxy, or haloalkoxy; R2 = H, halogen cyano, alkenyl, alkinyl, haloalkyl, haloalkenyl haloalkinyl, alkoxy, alkenyloxy, alkinyloxy haloalkoxy, alkoxyalkyl, alkylamino, di-(alkyl)amino alkylthio, haloalkylthio, alkylsulphinyl haloalkylsulphinyl, alkylsulphonyl, haloalkylsulphonyl or COR7; R4 R5, R6 = H, halogen, cyano, alkyl, haloalkyl alkoxy, haloalkoxy, alkylthio, haloalkylthio alkylsulphonyl, or , haloalkylsulphonyl and R7 = H hydroxy, alkyl, alkoxy, amino, alkylamino or di(alkyl)amino. The invention …
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 August 31, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 31, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 31, 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.