Method of in vitro differentiation of neural stem cells, motor neurons and dopamine neurons from primate embryonic stem cells
CA 2536588 C · Owner: Duncan, Ian David · Inventors: Li, Xue-Jun; Duncan, Ian David; Zhang, Su-Chun
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of differentiating embryonic stem cells into neural and motor cells is disclosed. In one embodiment, the invention comprises culturing a population of cells comprising a majority of cells that are characterized by an early rosette morphology and are Sox1-/Pax6+ in the presence of FGF2 FGF4, FGF8, FGF9, or RA wherein the cells are characterized by an neural tube-like rosette morphology and are Pax6+/Sox1+.
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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 27, 2004 and granted April 24, 2018. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 27, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 27, 2026.
- 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.