Lineage restricted glial precursors from the central nervous system
CA 2311682 A1 · Owner: Mayer-Proschel, Margot · Inventors: Noble, Mark; Rao, Mahendra S.; Mayer-Proschel, Margot
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A glial precursor cell population from mammalian central nervous system has been isolated. These A2B5+ E-NCAM- glial-restricted precursor (GRP) cells are capable of differentiating into oligodendrocytes A2B5+ process-bearing , astrocytes, and A2B5- fibroblast-like astrocytes but not into neurons. GRP , cells can be maintained by regeneration in culture. GRP cells differ from oligodendrocyte-type-2 astrocyte (O-2A) progenitor cells in growth factor requirements, morphology, and progeny. Methods of use of GRP cells are also disclosed.
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 November 17, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 17, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 17, 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
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.