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Expired Canadian patentCanada

Conjugates of peptides and peptide mimetics having integrin inhibitor properties

CA 2419423 C · Owner: Kantlehner, Martin · Inventors: Dard, Michel; Sulyok, Gabor; Hersel, Ulrich

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Abstract From the Canadian patent

The invention relates to compounds of formula (1) B-Q-X1 wherein B is a , bioactive, cell , adhesive mediating molecule Q is absent or is an inorganic spacer molecule and X1 is an anchor , molecule, selected from the group Lys-(CO-CH2-(CH2)n-PO3H2)2 (I) -Lys-Lys-, (CO-CH2-, (CH2)n-PO3H2)22 (ii) or -Lys-(Lys-Lys-(CO-CH2-(CH2)n-PO3H2)22 (iii) and n , independently represents 0, 1, 2 or 3 wherein a free amino group of group B is linked in peptide , form to a free carboxyl group of the spacer molecule Q or of the anchor molecule X1, or a free , amino group of the radical Q is linked in peptide form to a free carboxyl group of the radical X1. , The invention also relates to the salts …

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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 2, 2001 and granted January 4, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 2, 2021.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 2, 2023.
  • 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 2, 2001
GrantedJanuary 4, 2011
Term endedAugust 2, 2021
Patent numberCA 2419423 C
Classification (IPC)A61K47/48 +1 more

Timeline

Timeline From CIPO dates

2002200420062008201020122014201620182020Application filedAug 2, 2001Patent grantedJan 4, 2011Term endedAug 2, 2021

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