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Canadian application, no grantCanada

Genetically engineered primary oligodendrocytes for transplantation-mediated gene delivery in the central nervous system

CA 2247912 A1 · Owner: Mckinnon, Randall D. · Inventors: Mckinnon, Randall D.

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 pertains to a method for transplanting genetically engineered primary cells into the central nervous system of a patient. The method comprises the steps of (a) isolating primary oligodendrocyte progenitor cells from the brain of a patient; (b) expanding the cells in vitro with mitogens; (c) genetically engineering the cells by introducing transgenes through an eukaryotic expression vector for DNA-mediated gene transfer into the cells; and (d) transplanting the genetically engineered primary cells into the brain of the patient.

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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 February 28, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 28, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 28, 2019.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 28, 1997
GrantedNo grant recorded
Term endedFebruary 28, 2017
Patent numberCA 2247912 A1
Classification (IPC)C12N5/10 +2 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedFeb 28, 1997Term endedFeb 28, 2017

Sources & verification

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