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Expired Canadian patentCanada

Conjugates and methods for the production thereof, and their use for transporting molecules via biological membranes

CA 2377977 C · Owner: Gothe, Gislinde · Inventors: Gothe, Gislinde; Uhlmann, Eugen; Greiner, Beate

CIPO record

Overview

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Abstract From the Canadian patent

The invention relates to conjugates, methods for their production and to the , use of these conjugates for transporting low molecular weight compounds and macromolecules via biological membranes in , particular, for transporting molecules in cells. The invention also relates to medicaments diagnostic agents and test kits in , which these conjugates are present or introduced.

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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 July 20, 2000 and granted September 20, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 20, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 20, 2022.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 20, 2000
GrantedSeptember 20, 2011
Term endedJuly 20, 2020
Patent numberCA 2377977 C
Classification (IPC)A61K47/48 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedJuly 20, 2000Patent grantedSep 20, 2011Term endedJuly 20, 2020

Sources & verification

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