Engine coolant flush-filtering externally of engine with ion precipitation
CA 2009661 C · Owner: Vataru, Marcel · Inventors: Filowitz, Marc S.; Lugosi, Laszlo G.; Vataru, Marcel
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for rapid and efficient cleaning of an internal combustion engine cooling system includes forcing the coolant liquid from the cooling system to the exterior of that system, driving the coolant liquid from the cooling system to the exterior of that system treating the coolant liquid in a zone or zones outside the cooling system, such treating including effecting precipitation of anions end cations, in the coolant liquid to produce contaminant particulate and removing contaminant particule from the coolant liquid and, returning the treated coolant liquid to the cooking system.
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 February 9, 1990 and granted April 2, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 9, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 9, 2012.
- 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.