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Expired Canadian patentCanada

Novel immunogenic lipopeptides comprising t-helper and b-cell epitopes

CA 2494192 C · Owner: The Council Of The Queensland Institute Of Medical Research · Inventors: Zeng, Weiguang; Jackson, David C.

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Abstract From the Canadian patent

The present invention provides synthetic immunogenic lipopeptide molecules comprising co-linear T-helper and B cell epitopes and methods for their , production and use in the generation of primary and secondary immune responses, and for the vaccination of animal subjects against particular antigens. More particularly, the present invetion provides highly soluble lipopeptides wherein the lipid moiety is attached to the terminal side-chain group of an internal lysine or lysine analog preferably to the terminal side-, chain group of an internal diamino acid residue. Preferably the internal lysine or lysine analog is positioned between the T-helper epitope and the B cell epitope or …

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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 12, 2003 and granted January 22, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 12, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 12, 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 12, 2003
GrantedJanuary 22, 2013
Term endedAugust 12, 2023
Patent numberCA 2494192 C
Classification (IPC)C07K19/00 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedAug 12, 2003Patent grantedJan 22, 2013Term endedAug 12, 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.