Breathable fire extinguishing gas mixtures
CA 1308893 C · Owner: Lambertsen, Christian James · Inventors: Lambertsen, Christian James; Santangelo, Joseph Germano
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A process for safely preventing controlling and/or extinguishing, fires in confined spaces without damage to equipment loss of habitability, for personnel, loss of consciousness for personnel or a significant impact on the mental acuity of personnel in the confined space which comprises, introducing carbon dioxide and another inert gas e.g. nitrogen or helium, to the confined space to lower the oxygen content to a concentration in the range between 8% and 15% by volume while increasing the carbon dioxide content of the confined space to an amount in the range of 2% to 5% by volume. The combination of reducing oxygen concentration and increasing carbon dioxide concentration in the gaseous …
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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
- Granted October 20, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended October 20, 2009.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.