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Expired Canadian patentCanada

Perivascular mesenchymal precursor cells

CA 2816489 C · Owner: Mesoblast, Inc. · Inventors: Gronthos, Stan; Zannettino, Andrew; Shi, Songtao

CIPO record

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Abstract From the Canadian patent

Mesenchymal precursors cells have been isolated from perivascular niches from a range of tissues utilising a perivascular marker. A new mesenchymal precursor cell phenotype is described characterised by the presence of the perivascular marker 3G5 and preferably also alpha smooth muscle actin together with early developmental markers such as MUC 18 VCAM-1 and STRO-1bri. The perivascular mesenchymal precursor cell is multipotential and is shown to form vascular tissue, as well as bone marrow dentin and pulp. A method of enriching using cell sorting based on these markers is also described.

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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 March 29, 2004 and granted August 23, 2022. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 29, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 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.
FiledMarch 29, 2004
GrantedAugust 23, 2022
Term endedMarch 29, 2024
Patent numberCA 2816489 C
Classification (IPC)C12N5/07 +1 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedMarch 29, 2004Patent grantedAug 23, 2022Term endedMarch 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.