Power cable system for use in high temperature wellbore applications
CA 2343902 C · Owner: Mchugh, Marcus D. · Inventors: Oswald, Howard A.; Mchugh, Marcus D.; Manke, Gregory H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A submersible pumping system for use in high temperature wellbore applications. The system includes an electric submersible pumping unit having at least a submersible motor, a motor protector and a submersible pump powered by the submersible motor. A uniquely designed power cable is coupled to the submersible motor to provide power thereto. The unique design of the power cable and its connector permit the use of the overall system in high temperature environments or applications where the system is exposed to high temperature conditions.
Read the whole patent
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 10, 2001 and granted March 25, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 10, 2021.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 10, 2023.
- We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
Timeline
Timeline From CIPO dates
Sources & verification
Official CIPO records
Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.