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Expired Canadian patentCanada

Electric power plant with thermal storage medium

CA 2574830 C · Owner: Hollis, Irvine A. · Inventors: Nayef, Duraid S.; Hollis, Irvine A.

CIPO record

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Abstract From the Canadian patent

A power plant uses an energy source (1) to produce electricity in a first generator. The electricity from the first generator provides heat to a solid heat storage medium (2). The solid heat storage medium (2) is a heat exchanger and water is pumped through the solid heat storage medium to receive heat in order to convert the water into steam. The steam is then used to drive a set of second generators (4) to produce electricity. In this way electricity can , be produced using heat from the heat storage medium (2) whether or not the energy source (1) is operable. For example if the energy source (1) is a wind , turbine and the wind is not traveling at sufficient velocity to produce …

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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 25, 2005 and granted April 15, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 25, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 25, 2005
GrantedApril 15, 2014
Term endedJuly 25, 2025
Patent numberCA 2574830 C
Classification (IPC)F01K3/08

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedJuly 25, 2005Patent grantedApril 15, 2014Term endedJuly 25, 2025

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Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.