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Expired Canadian patentCanada

Connection system for subsea flow interface equipment

CA 2555403 C · Owner: Des Enhanced Recovery Limited · Inventors: Crawford, Alan; White, Paul W.; Donald, Ian

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

A connection system for connecting flow interface equipment to a subsea manifold is disclosed. The connection system relates particularly to a connection apparatus adapted to land a conduit means on a subsea manifold in a first stage of the connection and to connect a conduit means of the connection apparatus to a choke body of the manifold in a second stage of the connection.

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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 February 25, 2005 and granted August 21, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 25, 2025.
  • 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.
FiledFebruary 25, 2005
GrantedAugust 21, 2012
Term endedFebruary 25, 2025
Patent numberCA 2555403 C
Classification (IPC)E21B33/03

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedFeb 25, 2005Patent grantedAug 21, 2012Term endedFeb 25, 2025

Sources & verification

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