Catalytic method
CA 2285456 A1 · Owner: Precision Combustion, Inc. · Inventors: Pfefferle, William C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A catalytic reaction system for promoting hydrocarbon conversion reactions during fuel rich engine operation, the reaction system comprising a multicylinder internal combustion engine (10) and a microprocessor based engine , controller (22) the controller (22) comprising logic device to operate different cylinders at different fuel-air ratios.
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 April 6, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 6, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 6, 2020.
- 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.