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Expired Canadian patentCanada

Drill cuttings storage and conveying

CA 2623508 C · Owner: Curle, William · Inventors: Curle, William

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 drill cuttings storage and conveying system (10) comprises a pressure vessel (12) for containing drill cuttings and having a plurality of drill cuttings outlets. The outlets are in selective communication with a drill cuttings conveyor (14) for carrying drill cuttings from the vessel.

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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 September 22, 2006 and granted May 31, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 22, 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.
FiledSeptember 22, 2006
GrantedMay 31, 2016
Term endedSeptember 22, 2026
Patent numberCA 2623508 C
Classification (IPC)B65G53/22 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedSep 22, 2006Patent grantedMay 31, 2016Term endedSep 22, 2026

Sources & verification

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