Trans-pt (iv) complexes
CA 2061759 A1 · Owner: Barnard, Christopher Francis James · Inventors: Barnard, Christopher Francis James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
of the Invention, Trans-Pt(IV) compounds of general formula PtX2Y2L1L2), where X is halogen, Y is halogen hydroxyl or carboxylate and each L is an amine ligand, providing L1 and L2 are not both NH3 are surprisingly active against cancer cells, in contrast to expectations that all trans-Pt compounds are inactive.
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 February 24, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 24, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 24, 2014.
- 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.