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Canadian application, no grantCanada

Apparatus and method of generating electrical power from a reservoir

CA 2212138 A1 · Owner: Lundberg, Robert M. · Inventors: Lundberg, Robert M.

CIPO record

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A method of generating electrical power utilizing a gas distribution network comprised of a high pressure gas reservoir and a low pressure delivery pipeline includes the step of directing at least a portion of the high pressure gas within the reservoir through a satellite assembly to generate electrical power. The satellite assembly includes an expander and shaft an electrical, generator operatively associated with the shaft and control members for predeterminely controlling the temperature the pressure drop, and the flow of the compressed gas entering the expander from the high pressure reservoir to the low pressure reservoir.

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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 31, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended July 31, 2017.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 31, 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.
FiledJuly 31, 1997
GrantedNo grant recorded
Term endedJuly 31, 2017
Patent numberCA 2212138 A1
Classification (IPC)F02C9/20 +1 more

Timeline

Timeline From CIPO dates

1998200020022004200620082010201220142016Application filedJuly 31, 1997Term endedJuly 31, 2017

Sources & verification

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