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Expired Canadian patentCanada

Treating pulmonary disorders with gaseous agent causing repletion of gsno

CA 2434930 C · Owner: Duke University · Inventors: Stamler, Jonathan S.

CIPO record

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Abstract From the Canadian patent

Pulmonary disorders in which the GSNO pool or glutathione pool in the lung is depleted and where reactive oxygen species in lung are increased are treated , by deliverying into the lung as a gas agent causing repletion or increase of the GSNO pool or protection against toxicity and does so independently of reaction with oxygen. Agents include ethyl nitrite NOCl, NOBr, NOF, NOCN, N2O3, HNO, and H2S. Optionally N-acetylcysteine, ascorbate, H2S or HNO is administered in addition to other GSNO repleting agent to potentiate the effect of said agent.

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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 28, 2002 and granted April 3, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 28, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 28, 2024.
  • 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 28, 2002
GrantedApril 3, 2012
Term endedJanuary 28, 2022
Patent numberCA 2434930 C
Classification (IPC)A61K33/00 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedJan 28, 2002Patent grantedApril 3, 2012Term endedJan 28, 2022

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