Exhaust gas purifying device for an internal combustion engine
CA 2102917 A1 · Owner: Megna, Saverio · Inventors: Megna, Saverio
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The device comprises an outer casing (2) exhibiting an inlet (3) and an outlet (4) for the passage of the exhaust gases and at, least a filtering portion (8a, 8b) disposed internally of the outer casing (2), between the inlet (3) and outlet (4) and adapted to, retain the solid particles present in the exhaust gases. A process for purifying the exhaust gases in particular from a diesel, engine, is also provided which consists in previously subjecting the exhaust gases to mechanical filtering so as to retain the solid particles present therein and subsequently submitting the previously filtered exhaust gases to catalytic purification.
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 January 16, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended January 16, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 16, 2014.
- 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.