Novel naphthyl-substituted and anilide-substituted sulfonamides
CA 2318182 A1 · Owner: Eckenberg, Peter · Inventors: Hallenberger, Sabine; Harter, Michael; Weber, Olaf
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention relates to novel naphthyl-substituted and anilide-substituted sulfonamides of general formula (I), wherein the substituents A D, E, G, R1, R2, R3, R4 and X have the meanings given in the description. The invention also relates to the production of said sulfonamides and the utilization thereof as antiviral agents, especially for combating cytomegaloviruses.
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, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 9, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 9, 2021.
- 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.