Ruthenium complexes containing carboids
CA 2419368 A1 · Owner: Roper, Michael · Inventors: Roper, Michael; Werner, Helmut; Jung, Stefan
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In ruthenium complexes of general formula A or B X1, X2 independently , represent single or multidentate anionic ligands; R R', R'' independently , represent hydrogen or optionally substituted C1-20-alkyl C6-20-aryl or C7-20-, alkylaryl radicals; and L1 L2 independently represent neutral electron donor ligands which are co-ordinated at the metallic centre as carboids and which , can be linked by a bridge W having 0 to 20 carbon atoms. Said bridge can be a constituent of a cyclic or aromatic group and can be split by heteroatoms with the exception of C,N-heterocyclic five-membered ring systems.
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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 10, 2001. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended August 10, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 10, 2023.
- 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.