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Expired Canadian patentCanada

Template-fixed beta-hairpin peptidomimetics with cxcr4 antagonizing activity

CA 2847486 C · Owner: Universitat Zurich · Inventors: Ludin, Christian; Moehle, Kerstin; Romagnoli, Barbara

CIPO record

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Abstract From the Canadian patent

Template-fixed .beta.-hairpin peptidomimetics of the general formula (I) wherein Z is a template-fixed chain of 12 14 or 18 .alpha.-amino acid residues which depending on their positions in the chain (counted starting from the N-terminal amino acid) are Gly, NMeGly, Pro or Pip, or of certain types which as the remaining symbols in the above formula are defined in the description and the claims and salts thereof, have CXCR4 antagonizing properties and can be used for preventing HIV infections in healthy individuals or for slowing and halting viral progression in infected patients; or where cancer is mediated or resulting from CXCR4 receptor activity; or where immunological diseases are …

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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 April 29, 2004 and granted March 15, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 29, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 29, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 29, 2004
GrantedMarch 15, 2016
Term endedApril 29, 2024
Patent numberCA 2847486 C
Classification (IPC)C07K14/00 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedApril 29, 2004Patent grantedMarch 15, 2016Term endedApril 29, 2024

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