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Expired Canadian patentCanada

A rectification apparatus using a heat pump

CA 2606640 C · Owner: Holm Christensen Biosystemer Aps · Inventors: Jensen, Erik

CIPO record

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Abstract From the Canadian patent

An apparatus for stripping and strengthening and subsequent condensing and final strengthening of an easily vaporizable component of a preferably aqueous mixture permits the heat necessary for stripping and strengthening to be transferred through a common heat transmission body (3) where the heat is , derived from condensing the vapour generated by stripping and strengthening which vapour via compression using a heat pump (26) has obtained the increase in boiling point necessary for condensation. The apparatus is comprised of two sections, namely a stripping and strengthening section or first section (1) and a condensing and final strengthening section or second section (2) said , …

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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 April 28, 2006 and granted January 8, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 28, 2026.
  • 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.
FiledApril 28, 2006
GrantedJanuary 8, 2013
Term endedApril 28, 2026
Patent numberCA 2606640 C
Classification (IPC)B01D3/08 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedApril 28, 2006Patent grantedJan 8, 2013Term endedApril 28, 2026

Sources & verification

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