Exhaust emission particulate remover and exhaust emission control device
CA 2292949 A1 · Owner: Kudoh, Yasushi · Inventors: Kudoh, Yasushi
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An exhaust emission particulate remover which is connected to a combustion emission gas exhausting path to remove particulate contained in the emission gas, comprising filter units (13 and 14) a fuel injection nozzle (31), and an , ignitor (32) wherein the filter units (13 and 14) are formed with porous ceramic partitions (21 and 22) which form a plurality of narrow passages (23 and 24) extending in the flow direction of the emission gas the emission gas , is introduced from one end of each of the passages (23 and 24) and exhausted from the other end of it so as to trap particulate contained in the emission gas by the ceramic partitions (21 and 22) and the fuel injection nozzle (31) , …
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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 February 1, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 1, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 1, 2021.
- 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.