Compounds with the bicyclo4.2.1nonane system for the treatment of flaviviridae infections
CA 2494340 C · Owner: Pharmasset Inc. · Inventors: Hollecker, Laurent; Wang, Peiyuan; Hassan, Abdalla
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The disclosed invention is a bicyclo4.2.1nonane of general formula (I) and its pharmaceutically , acceptable salt or prodrug and its composition and method of use to treat Flaviviridae , (Hepacivirus, Flavivirus and Pestivirus) infections on a host, including animals, and especially , humans.(see formula I)
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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 August 1, 2003 and granted January 24, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 1, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 1, 2025.
- 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.