Methods for encapsulating nucleic acids in lipid bilayers
CA 2309727 C · Owner: Inex Pharmaceuticals Corporation · Inventors: Wheeler, Jeffery J.; Zhang, Yuan-Peng; Cullis, Pieter R.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to lipid-based formulations for nucleic acid delivery to cells, methods for the preparation of such formulations and in , particular, to lipid encapsulated plasmids. The compositions are safe and practical for clinical use. In addition the present invention provides , methods for introducing nucleic acids into cells and for inhibiting tumor growth in cells using such lipid-nucleic acid formulations.
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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 October 9, 1998 and granted December 4, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 9, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 9, 2020.
- 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.