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Expired Canadian patentCanada

Polyhydroxy phenols and their use in binding p-selectin

CA 2527141 C · Owner: Bonnefoy, Arnaud · Inventors: Kuiper, Johan; Biessen, Erik Anna Leonardus; Bonnefoy, Arnaud

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

Polyhydroxy phenols, which are non-peptidic mimetics of galloyl peptides and , a process for the preparation of gallic acid derivatives using a gallic-acid providing moiety are provided as well as polyhydroxy phenol-containing pharmaceutical and nutraceutical compositions. The use of polyhydroxy phenols as a medicament and especially for the manufacture of a medicament for the prevention, treatment or diagnosis of a disease or a condition wherein P-, selectin is involved, is provided. The same compounds can also be used as targeting tools to P-selectin expressing cells or tissues in a composition further comprising an active compound in a vehicle.

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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 May 7, 2004 and granted March 27, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 7, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 7, 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.
FiledMay 7, 2004
GrantedMarch 27, 2012
Term endedMay 7, 2024
Patent numberCA 2527141 C
Classification (IPC)C07C69/96 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedMay 7, 2004Patent grantedMarch 27, 2012Term endedMay 7, 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.