Pure populations of astrocyte restricted precursor cells and methods for isolation and use thereof
CA 2473749 C · Owner: The Government Of The United States Of America, As Represented By The Secretary, Department Of Health And Human Services · Inventors: Wu, Yuan Yuan; Rao, Mahendra S.; Liu, Ying
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An isolated, pure homogeneous population of mammalian astrocyte retricted precursor cells which is CD44 immunoreactive and which generate astrocytes but not oligodendrocytes is provided. Methods for isolating and using these mammalian astrocyte restricted precursor cells are also provided.
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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 January 23, 2003 and granted May 22, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 23, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 23, 2025.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
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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.