Fuel-cell power generating system
CA 2259396 C · Owner: Yamaga, Noriyuki · Inventors: Yamaga, Noriyuki; Kudo, Hitoshi; Nakamura, Toru
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention is directed to a portable power generating system that can be operated by using a portable pressure canister containing a liquefied butane fuel gas. In the power generating system a part of the, butane gas contained in the pressure canister is used as a fuel gas and remainder of the butane gas is used to prepare a reformed gas containing hydrogen gas by reaction with water. The hydrogen gas in the reformed gas and oxygen gas in air are used in a fuel cell to generate electric power. The power generating system is characterized in a compact portable one which further comprises a device for regulating the amount of the butane gas discharged from said pressure canister …
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 July 2, 1997 and granted August 19, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 2, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 2, 2019.
- 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.