Non-nucleoside reverse transcriptase inhibitors i for treating hiv mediated diseases
CA 2518437 C · Owner: Sweeney, Zachary Kevin · Inventors: Dunn, James Patrick; Sweeney, Zachary Kevin; Swallow, Steven
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
This invention relates to novel heterocyclic compounds of formula (I) wherein R1- R4, X1 and X2 are as defined in the summary and pharmaceutically acceptable salts and solvates thereof, methods to inhibit or modulate Human Immunodeficiency Virus (HIV) reverse transcriptase with compounds of formula (I), pharmaceutical compositions containing of formula (I) admixed with at least one solvent, carrier or excipient and processes to prepare compounds of formula (I). The compounds are useful for treating disorders in which HIV and genetically related viruses are to implicated.
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 March 22, 2004 and granted July 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 22, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 22, 2026.
- 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.