Liposome fusion and delivery vehicle
CA 2325744 A1 · Owner: Waring, Alan J. · Inventors: Waring, Alan J.; Longmuir, Kenneth J.; Haynes, Sherry M.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Described herein are liposome complexes and the individual components thereof for intracellular and/or intranuclear delivery of substances. Methods of use of the provided liposome complexes and components are also described. Generally, the liposome complexes described herein include a non-cationic lipid, a fusogenic peptide and a substance to be delivered to the cell and/or nucleus. In some of the liposome complexes described herein the fusogenic , peptide does not contain multiple positive charges at neutral pH and above. In these liposome complexes, two additional components are used in assembling the liposome complex with DNA.
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 4, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 4, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 4, 2021.
- 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.