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Expired Canadian patentCanada

Production of radial glial cells

CA 2364095 C · Owner: Gregg, Christopher · Inventors: Gregg, Christopher; Weiss, Samuel

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

The present invention relates to a method of producing radial glial cells from neural stem cells particularly by contacting neural stem cells with epidermal growth factor (EGF) fibroblast growth factor 2 (FGF-2) and/or TGF.alpha.. Leukemia inhibitory factor (LIF) and ciliary neurotrophic factor (CNTF) can optionally be added to enhance the effect of EGF FGF-1 or TGF.alpha..

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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 November 30, 2001 and granted July 12, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 30, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 30, 2023.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 30, 2001
GrantedJuly 12, 2011
Term endedNovember 30, 2021
Patent numberCA 2364095 C
Classification (IPC)C12N5/07 +2 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedNov 30, 2001Patent grantedJuly 12, 2011Term endedNov 30, 2021

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.