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Expired Canadian patentCanada

Removal of carbon dioxide from air

CA 2616701 C · Owner: Ginster, Ursula · Inventors: Wright, Allen B.; Lackner, Klaus S.; Wallen, Matt

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

The present invention is directed to methods for removing CO2 from air which , comprises exposing sorbent covered surfaces to the air. The invention also provides for an apparatus for exposing air to a CO2 sorbent. In another aspect the invention , provides a method and apparatus for separating carbon dioxide (CO2) bound in a sorbent.

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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 28, 2006 and granted October 2, 2018. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 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.
FiledJuly 28, 2006
GrantedOctober 2, 2018
Term endedJuly 28, 2026
Patent numberCA 2616701 C
Classification (IPC)B01D53/14

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedJuly 28, 2006Patent grantedOct 2, 2018Term endedJuly 28, 2026

Sources & verification

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