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Expired Canadian patentCanada

Products and methods for controlling the suppression of the neoplastic phenotype

CA 2001815 C · Owner: Lee, Wen-Hwa · Inventors: Lee, Wen-Hwa; Huang, Huei-Jen S.; Lee, Eva Y.H.P.

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

A method for gene therapy for cancers wherein chromosomal location of an inactive or defective cancer suppressing gene is established, a replacement gene which is preferably cloned is then used to replace the inactive or defective cancer suppressing gene in the chromosome. In addition to its uses in therapy, the present invention provides a means for prophylactically treating individuals having a genetic predisposition to cancer and provides an animal model for testing for carcinogenicity of environmental substances.

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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 October 30, 1989 and granted September 3, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 30, 2009.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 30, 2011.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 30, 1989
GrantedSeptember 3, 2002
Term endedOctober 30, 2009
Patent numberCA 2001815 C
Classification (IPC)C12N15/12 +2 more

Timeline

Timeline From CIPO dates

1990199219941996199820002002200420062008Application filedOct 30, 1989Patent grantedSep 3, 2002Term endedOct 30, 2009

Sources & verification

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