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Expired Canadian patentCanada

Operating electrolyte based components

CA 2462899 C · Owner: Joinson, Daniel · Inventors: Hudson, Steven Martin; Joinson, Daniel

CIPO record

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Abstract From the Canadian patent

A method of operating a downhole component (for example a battery pack) comprising at least one electrolyte based element. The method comprising the steps of locating the component in a downhole environment and whilst the component is in the downhole environment subjecting the element to a pressure in excess of atmospheric pressure to suppress at least one of boiling and evaporation of electrolyte in the element. The component may then be operated at a temperature in excess of that which would be tolerated by the electrolyte based element if not subjected to a pressure in excess of atmospheric pressure.

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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 October 10, 2002 and granted December 18, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 10, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 10, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 10, 2002
GrantedDecember 18, 2012
Term endedOctober 10, 2022
Patent numberCA 2462899 C
Classification (IPC)H01M6/50 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedOct 10, 2002Patent grantedDec 18, 2012Term endedOct 10, 2022

Sources & verification

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