Canadian application, no grantCanada
Method for the preparation of 2-aryl-5-trifluoromethyl pyrrole compounds
CA 2109741 A1 · Owner: Basf Aktiengesellschaft · Inventors: Kameswaran, Venkataraman
Overview
Drawings and full text
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
There is provided a method for the preparation of 2-aryl-5-trifluoromethyl pyrrole compounds which are useful as insecticidal, acaricidal and nematicidal agents and as intermediates in the manufacture of said agents.
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 23, 1993. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 23, 2013.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 23, 2015.
- 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 23, 1993
GrantedNo grant recorded
Term endedNovember 23, 2013
Patent numberCA 2109741 A1
Classification (IPC)C07D207/34 +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.