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Canadian application, no grantCanada

Tumour therapy

CA 2273218 A1 · Owner: Bagshawe, Kenneth Dawson · Inventors: Bagshawe, Kenneth Dawson

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 three component therapeutic system comprising (i) a first compound (ii) a , catalytic macromolecule which does not specifically bind to a tumour antigen but which is capable, following administration to the vascular compartment of a mammal, of being taken up by a tumour in the mammal and is capable of converting the first compound into a second compound and (iii) an inhibitor , which, following administration to the said vascular compartment reduces the , level of the said catalytic conversion activity in the vascular compartment.

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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 28, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 28, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 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.
FiledNovember 28, 1997
GrantedNo grant recorded
Term endedNovember 28, 2017
Patent numberCA 2273218 A1
Classification (IPC)A61K47/48

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedNov 28, 1997Term endedNov 28, 2017

Sources & verification

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