Novel modifications to 2-amino-4-(4-fluorobenzylamino) -1- ethoxycarbonyl-aminobenzene and processes for preparing said compound
CA 2634811 C · Owner: Asta Medica Health Products Gmbh & Co. Kg · Inventors: Kutscher, Bernhard; Thiel, Wilfried; Schaefer, Juergen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention concerns novel modifications to the compound 2-amino-4-1-ethoxycarbonyl-aminobenzene of formula. The invention also concerns processes for preparing this compound and its use in pharmaceutical compositions.
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 9, 1998 and granted November 20, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 9, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 9, 2020.
- 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.