Patent Yard Sign in
Expired Canadian patentCanada

Transition metal complexes with (pyridyl)imidazole ligands

CA 2464572 C · Owner: Heller, Adam · Inventors: Mao, Fei; Heller, Adam

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

Novel transition metal complexes of iron cobalt, ruthenium, osmium, and , vanadium are described. The transition metal complexes can be used as redox mediators in enzyme-based electrochemical sensors. The transition metal complexes include substituted or unsubstituted (pyridyl)imidazole ligands. Transition metal complexes attached to polymeric backbones are also described.

Read the whole patent

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 10, 2002 and granted May 1, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 10, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 10, 2024.
  • 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 10, 2002
GrantedMay 1, 2012
Term endedMay 10, 2022
Patent numberCA 2464572 C
Classification (IPC)C07F15/06 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedMay 10, 2002Patent grantedMay 1, 2012Term endedMay 10, 2022

Sources & verification

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