Combination diesel/electric heating appliance systems
CA 2451934 C · Owner: International Thermal Investments Ltd. · Inventors: Wilnechenko, Bruce Conrad; Robinson, Edgar C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A diesel/electric appliance for heating coolant within an auxiliary heater circuit and for heating potable water within a potable water circuit. The appliance includes a diesel powered auxiliary heater and a coolant jacket surrounding the burner of the auxiliary heater. A coolant reservoir is provided with the diesel powered auxiliary burner and electrical resistance elements are immersed within the coolant reservoir to maintain the temperature of the potable water circuit by transferring heat through a heat exchanger to the potable water circuit.
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 December 2, 2003 and granted January 13, 2015. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 2, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 2, 2025.
- 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.