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Expired Canadian patentCanada

Soluble receptor br43x2 and methods of using

CA 2358520 C · Owner: Xu, Wenfeng · Inventors: Xu, Wenfeng; Yee, David P.; Madden, Karen

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

Soluble, secreted tumor necrosis factor receptor polypeptides polynucleotides , encoding the polypeptides and related compositions and methods are disclosed. The polypeptides comprise one cysteine-rich repeat that is homologous to other tumor necrosis factor receptors, such as transmembrane activator and CAMLinteractor (TACI). The polypeptides may be used for detecting ligands agonists and antagonists. The polypeptides may also be used in methods that modulate B cell activation.

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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 January 7, 2000 and granted December 13, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 7, 2020.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 7, 2022.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 7, 2000
GrantedDecember 13, 2011
Term endedJanuary 7, 2020
Patent numberCA 2358520 C
Classification (IPC)A61K39/39 +2 more

Timeline

Timeline From CIPO dates

2001200320052007200920112013201520172019Application filedJan 7, 2000Patent grantedDec 13, 2011Term endedJan 7, 2020

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