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Expired Canadian patentCanada

Contaminant control system for natural gas dehydration

CA 2053760 C · Owner: Natco · Inventors: Miles, Bert B.; Sams, Gary W.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A system for controlling organic contaminants released from a regenerator during the process of liquid dehydration of natural gas where contaminants are vaporized into a gaseous mixture. The system includes conducting the vaporized mixture from the regenerator to a heater, heating the vaporized mixture in the heater conducting the, vaporized mixture from the heater to a liquid collection chamber where suspended liquid particles are separated out from the vaporized mixture drawing the vaporized mixture, from the liquid chamber using fuel gas as an aspirator mixing atmospheric air with the, vaporized mixture and combusting the vaporized mixture in order to incinerate the vaporized mixture.

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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 18, 1991 and granted September 29, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended October 18, 2011.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 18, 2013.
  • 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 18, 1991
GrantedSeptember 29, 1998
Term endedOctober 18, 2011
Patent numberCA 2053760 C
Classification (IPC)B01D53/14 +2 more

Timeline

Timeline From CIPO dates

1992199419961998200020022004200620082010Application filedOct 18, 1991Patent grantedSep 29, 1998Term endedOct 18, 2011

Sources & verification

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