Catalytic combustion heater
CA 2269193 C · Owner: Yamada, Tomoji · Inventors: Yamada, Tomoji; Ogino, Shigeru; Hirose, Shoji
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A catalytic combustion heater is presented. The catalytic combustion heater includes a, container forming a fuel gas passage heat-receiving fluid passages, in which a heat-receiving, fluid flows, that are disposed in the fuel gas passage. A catalyst-based heat exchanger for heating, a heat-receiving fluid by a reaction heat of a fuel gas is disposed in the fuel gas passage and has, catalytic layers that are provided on outer peripheries of the heat-receiving fluid passages and, cause an exothermic reaction upon contact with the fuel gas. The catalytic combustion heater, also has heat amount changing means for changing an amount of heat to be supplied to the heat-, receiving fluid …
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 16, 1999 and granted August 19, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 16, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 16, 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.