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Expired Canadian patentCanada

Cryogenic air separation system with integrated machine compression

CA 2264510 C · Owner: Bonaquist, Dante Patrick · Inventors: Mahoney, Kevin William; Bonaquist, Dante Patrick; Henry, Paul Arthur

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 cryogenic air separation system wherein base load pressure energy is supplied to the feed air by a base load compressor and custom load pressure energy is supplied to the feed air by a bridge machine having one or more turbine booster compressors and one or more product boiler booster compressors, all of the compressors of the bridge machine driven by power supplied through a single gear case.

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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 March 2, 1999 and granted November 5, 2002. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 2, 2019.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 2, 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.
FiledMarch 2, 1999
GrantedNovember 5, 2002
Term endedMarch 2, 2019
Patent numberCA 2264510 C
Classification (IPC)F25J3/04 +1 more

Timeline

Timeline From CIPO dates

2000200220042006200820102012201420162018Application filedMarch 2, 1999Patent grantedNov 5, 2002Term endedMarch 2, 2019

Sources & verification

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