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Expired Canadian patentCanada

Thioredoxin composition and uses thereof for liquefaction of mucus or sputum

CA 2498581 C · Owner: National Jewish Medical And Research Center · Inventors: White, Carl W.

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Abstract From the Canadian patent

Disclosed are compositions and methods for decreasing the viscosity and/or cohesiveness of , and/or increasing the liquefaction of excessively or abnormally viscous or cohesive mucus or , sputum. The composition contains a protein or peptide containing a thioredoxin active-site in , reduced state and at least one additional agent for treatment of excessively viscous or cohesive , mucus or sputum, wherein the thioredoxin active-site comprises the amino acid sequences C-X-, X-C, the amino acid sequence X-C-X-X-C-X the amino acid sequence X-C-G-P-C-X, or the amino acid sequence W-C-G-P-C-K, wherein C residues are in reduced state X , residues are any , amino acid residue and the …

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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 10, 2003 and granted March 19, 2019. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 10, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 10, 2025.
  • 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 10, 2003
GrantedMarch 19, 2019
Term endedSeptember 10, 2023
Patent numberCA 2498581 C
Classification (IPC)A61K38/44

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedSep 10, 2003Patent grantedMarch 19, 2019Term endedSep 10, 2023

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