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Expired Canadian patentCanada

Biocompatible phase invertable proteinaceous compositions and methods for making and using the same

CA 2494295 C · Owner: Schankereli, Kemal · Inventors: Dieck, Ronald; Schankereli, Kemal

CIPO record

Overview

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Abstract From the Canadian patent

Biocompatible phase invertable proteinaceous compositions and methods for making and using the same are provided. The subject phase invertable compositions are prepared by combining a proteinaceous substrate and a crosslinker. The proteinaceous substrate includes one or more proteins and an adhesion modifier, and may also include one or more of: a pasticizer a , carbohydrate, or other modification agent. In certain embodiments the cross-, linker is a heat-treated dialdehyde e.g. heat-treated glutaraldehyde. Also provided are kits for use in preparing the subject compositions. The subject compositions, kits and systems find use in a variety of different applications.

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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 August 5, 2003 and granted May 1, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 5, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 5, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 5, 2003
GrantedMay 1, 2012
Term endedAugust 5, 2023
Patent numberCA 2494295 C
Classification (IPC)A61L27/44 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedAug 5, 2003Patent grantedMay 1, 2012Term endedAug 5, 2023

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