Novel phosphoramidate and phophorothioamidate oligomeric compounds
CA 2184005 C · Owner: Acevedo, Oscar · Inventors: Acevedo, Oscar; Cook, Phillip Dan; Hebert, Normand
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Compounds are, provided having structure (1), wherein the L groups are, backbone segments the Y, and T groups are functional, groups for interacting with target molecules of interest, the X groups are oxygen or sulfur and the E groups, are H, conjugate groups or intermediate groups used, during the synthesis of the compounds are prepared, using H phosphonate type chemistry wherein the, functional groups are added during an oxidization step, or during a coupling step.
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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 February 23, 1995 and granted January 25, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 23, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 23, 2017.
- 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
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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.