Combined cycle plant
CA 2269731 C · Owner: Tsukuda, Yoshiaki · Inventors: Uematsu, Kazuo; Tsukuda, Yoshiaki; Sugishita, Hideaki
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Combined cycle plant comprising heat exchanger (3) for recovering heat into compressed air or gas turbine fuel to be supplied into gas turbine (01) is constructed such that steam is used as high temperature side working medium of the heat exchanger (3), thereby heating medium supply passage can be made of ordinary steam piping and piping cost is reduced. Also gas turbine exhaust gas is led directly into waste heat recovery boiler (02), thereby gas turbine efficiency and combined efficiency can be enhanced and plant manufacturing cost is reduced.
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 22, 1999 and granted December 11, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 22, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 22, 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.