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Expired Canadian patentCanada

Functionalized adsorbent for removal of acid gases and use thereof

CA 2600751 C · Owner: Sayari, Abdelhamid · Inventors: Harlick, Peter J.E.; Sayari, Abdelhamid

CIPO record

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Abstract From the Canadian patent

The present invention provides a functionalized adsorbent for removal of acid gases, which comprises a pore-expanded mesoporous support having a pore volume of between 0.7 and 3.6 cc/g, a median pore diameter of between 1 and 25 nm and a BET surface area of between 500 and 1600 m2/g. The support is functionalized by addition of acid-gas reactive functional groups within the pores and external surface of said support material. Also provided are methods of manufacturing the adsorbent and methods of use.

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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 13, 2006 and granted August 7, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 13, 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.
FiledMarch 13, 2006
GrantedAugust 7, 2012
Term endedMarch 13, 2026
Patent numberCA 2600751 C
Classification (IPC)B01J20/22 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedMarch 13, 2006Patent grantedAug 7, 2012Term endedMarch 13, 2026

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