Patent Yard Sign in
Expired Canadian patentCanada

Method and apparatus for nitric oxide generation

CA 2833997 C · Owner: Geno Llc · Inventors: Rolfe, Jonathan L.; Jarvis, George; Rounbehler, David

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

Open the CIPO record

Abstract From the Canadian patent

Inhalation of low levels of nitric oxide can rapidly and safely decrease pulmonary hypertension in mammals. Precise delivery of nitric oxide at therapeutic levels of 20 to 100 ppm and inhibition of reaction of nitric oxide with oxygen to form toxic impurities such as nitrogen dioxide can provide effective inhalation therapy for pulmonary hypertension.

Read the whole patent

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 August 28, 2002 and granted September 26, 2017. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 28, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by August 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.
FiledAugust 28, 2002
GrantedSeptember 26, 2017
Term endedAugust 28, 2022
Patent numberCA 2833997 C
Classification (IPC)A61K33/00 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedAug 28, 2002Patent grantedSep 26, 2017Term endedAug 28, 2022

Sources & verification

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