Extraction of nitrogen compounds from combustion exhaust gases
CA 2409883 A1 · Owner: Lewis, Gary · Inventors: Lewis, Gary
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system is provided for extracting nitrogen compounds from combustion exhaust gases, which is particularly suited for use with an agricultural, irrigation system. The system includes an exhaust chamber in communication with, the motor driving the irrigation pump of the irrigation system for receiving the, exhaust gases therethrough. Water is injected into the exhaust chamber for mixing, with the exhaust so that the steam being formed absorbs various nitrogen compounds from the surrounding hot exhaust gases. The steam is subsequently condensed in a condensing chamber from which condensate is collected and dispensed into the inlet of the irrigation pump with the irrigation water. 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 October 29, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 29, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 29, 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.
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.