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Expired Canadian patentCanada

Chemical structure with affinity for a phospholipid, and marker compound, diagnosis kit, and medicine comprising said structure

CA 2345375 C · Owner: Neumann, Jean-Michel · Inventors: Guerois, Raphael; Cordier-Ochsenbein, Francoise; Sanson, Alain

CIPO record

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

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Abstract From the Canadian patent

The invention concerns a compound with affinity for a negatively charged phospholipid and a detection molecule a conjugate and a pharmaceutical composition containing said compound. Generally speaking the compound of the invention is useful for specific recognition of lipid vectors and can be used for engineering and preparing compounds for identifying and sequestering negatively charged lipids such as phosphatidyl serine and phosphatidic acid. Said chemical structure many have the construct (I).

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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 September 30, 1999 and granted October 22, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 30, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 30, 2021.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 30, 1999
GrantedOctober 22, 2013
Term endedSeptember 30, 2019
Patent numberCA 2345375 C
Classification (IPC)C07K14/47 +2 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedSep 30, 1999Patent grantedOct 22, 2013Term endedSep 30, 2019

Sources & verification

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