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Expired Canadian patentCanada

Proteoglycan degrading mutants for treatment of cns

CA 2525784 C · Owner: Roy, Gargi · Inventors: D'Souza, Rohini; Roy, Gargi; Caggiano, Anthony O.

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

The present disclosure relates to the preparation and deletion mutants of chondroitinase proteins and their use in methods for promoting the diffusion of therapeutic composition into tissues and their use for neurological functional recovery after central nervous system ("CNS") injury or disease.

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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 17, 2004 and granted April 9, 2019. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 17, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 17, 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 17, 2004
GrantedApril 9, 2019
Term endedMay 17, 2024
Patent numberCA 2525784 C
Classification (IPC)C12N15/60 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedMay 17, 2004Patent grantedApril 9, 2019Term endedMay 17, 2024

Sources & verification

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