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Canadian application, no grantCanada

Fuel cell assembly and method for controlling reaction equilibrium

CA 2451345 A1 · Owner: Thirukkovalur, Niranjan · Inventors: Mardilovich, Peter; Champion, David; Thirukkovalur, Niranjan

CIPO record

Overview

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

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Abstract From the Canadian patent

In accordance with various embodiments of the invention a fuel cell, assembly may comprise a flow passageway having a region of graduated cross sectional area along the flow passageway for maintaining a reaction equilibrium. The region may be defined be the arrangement of stacked fuel cell elements alone or in combination with additional shaped spacers.

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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 November 28, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 28, 2023.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 28, 2025.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 28, 2003
GrantedNo grant recorded
Term endedNovember 28, 2023
Patent numberCA 2451345 A1
Classification (IPC)H01M8/04 +2 more

Timeline

Timeline From CIPO dates

2004200620082010201220142016201820202022Application filedNov 28, 2003Term endedNov 28, 2023

Sources & verification

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