Method of obtaining 2-(2-nitrovinyl)-furan and the use thereof as a coccidiostatic
CA 2466010 A1 · Owner: Castanedo Cancio, Nilo Ramon · Inventors: Gonzalez Hernandez, Orlando; Castanedo Cancio, Nilo Ramon; Diaz Molina, Maria Isabel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to a method of obtaining and purifying 2-(2nitrovinyl)furane consisting in reacting furfural and nitromethane using , isobutylamine as a catalyst and activated carbon as an adsorbent in order to , obtain a product of pharmaceutical quality. Said technique considerably reduces the environmental impact by eliminating the gaseous waste from the system by means of absorption in water. The inventive pharmaceutical composition contains 2-(2-nitrovinyl)furan and has powerful action against low concentrations of coccidia.
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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 September 24, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 24, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 24, 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.