Steam generator
CA 2177454 C · Owner: Mitsubishi Jukogyo Kabushiki Kaisha · Inventors: Kaneko, Shozou; Fukuda, Tsuneo; Sato, Susumu
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A steam generator which is operated under both of the supercritical pressure and the subcritical pressure having generating tubes that form a furnace wall includes upper and, lower generating tubes which are directed vertically and central generating tubes which are inclined by 10 to 35° with respect to a vertical line. The steam generator further includes a burner wind box which is inclined along the inclination of the generating tubes and vertically divided into a plurality of stages.
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 May 27, 1996 and granted September 12, 2000. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 27, 2016.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 27, 2018.
- 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.