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Expired Canadian patentCanada

Optical fiber equipped tubing and methods of making and using

CA 2562019 C · Owner: Schlumberger Canada Limited · Inventors: Lovell, John R.; Gay, Michael G.; Adnan, Sarmad

CIPO record

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Abstract From the Canadian patent

The present invention relates to an optical fiber equipped tubing and methods of making and using the same. The optical fiber equipped tubing comprises a fiber optic tube deployed within a tubular the fiber optic tube having at , least one optical fiber disposed within a duct the duct typically being a , metallic metal compatible with wellbore environments. The present invention also relates to a method of making an optical fiber equipped tubing comprising pumping a fluid into a tubular and deploying a fiber optic tube into the tubular by propelling it in the flow of the pumped fluid. The present invention also provides a method of communicating in wellbore using a fiber optic tube …

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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 April 22, 2005 and granted February 16, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 22, 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.
FiledApril 22, 2005
GrantedFebruary 16, 2016
Term endedApril 22, 2025
Patent numberCA 2562019 C
Classification (IPC)E21B23/14 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedApril 22, 2005Patent grantedFeb 16, 2016Term endedApril 22, 2025

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