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Expired Canadian patentCanada

Inhalation of nitrogen monoxide for the prevention and the treatment of inflammatory reactions

CA 2180506 C · Owner: N.O. Institute Inc. · Inventors: Blaise, Gilbert

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 use of nitrogen monoxide as a drug in gaseous form in order to prevent or to combat inflammatory reactions as a result of extracorporeal blood circulation during operations on humans or animals. This gaseous medicine is preferably administered to the person or to the animal by inhalation through oral or nasal intubation during at least one part of the preoperative preparation phase during the operation, and during a portion of the post-operative recuperation phase. Preferably the drug should be administered in concentrations of 0.5 ppm and 80 ppm. The use of nitrogen monoxide also aids in maintaining renal pulmonary, hepatic and neurological function following extracorporeal blood …

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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 July 4, 1996 and granted November 25, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 4, 2016.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 4, 2018.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 4, 1996
GrantedNovember 25, 2003
Term endedJuly 4, 2016
Patent numberCA 2180506 C
Classification (IPC)A61K33/00 +2 more

Timeline

Timeline From CIPO dates

1997199920012003200520072009201120132015Application filedJuly 4, 1996Patent grantedNov 25, 2003Term endedJuly 4, 2016

Sources & verification

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