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Expired Canadian patentCanada

Gene therapy for cystic fibrosis

CA 2091882 C · Owner: Wilson, James M. · Inventors: Wilson, James M.; Collins, Francis S.

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 comprises gene therapy for treating cystic fibrosis (CF). Delivery and expression of a single copy of a normal CFTR gene leads to stable correction of the Cl channel regulation defect present in CF epithelial cells. The present invention includes recombinant viral and plasmid vectors alternative CFTR , gene delivery strategies and transduced CF cells and, cell lines carrying a recombinant gene for functional CFTR. CF epithelial complementation through transduction of the present invention also provides an assay for determining the validity of other putative CF mutations.

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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 September 16, 1991 and granted February 22, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 16, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 16, 2013.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 16, 1991
GrantedFebruary 22, 2000
Term endedSeptember 16, 2011
Patent numberCA 2091882 C
Classification (IPC)C12N15/86 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedSep 16, 1991Patent grantedFeb 22, 2000Term endedSep 16, 2011

Sources & verification

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