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Expired Canadian patentCanada

A non-mitogenic competitive hgf antagonist

CA 2091700 C · Owner: The United States Of America As Represented By The Secretary Department Of Health And Human Services · Inventors: Chan, Andrew M.-L.; Aaronson, Stuart A.; Rubin, Jeffrey 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 relates to a novel truncated form of hepatocyte growth factor (HGF) which specifically antagonizes the activity of HGF. In particular, the present invention relates to the purification, molecular cloning and recombinant expression of the truncated HGF variant. The present invention further relates to the utilization of the small HGF variants in the diagnosis and treatment of diseases in which cell proliferation is either excessive as in the case of malignancy or impaired due in part to aberrant expression of the various forms of HGF.

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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 10, 1991 and granted November 19, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 10, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 10, 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 10, 1991
GrantedNovember 19, 2002
Term endedSeptember 10, 2011
Patent numberCA 2091700 C
Classification (IPC)C12N15/18 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedSep 10, 1991Patent grantedNov 19, 2002Term endedSep 10, 2011

Sources & verification

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