Method of hydraulically actuating and mechanically activating a downhole mechanical apparatus
CA 2441738 C · Owner: Vuyk, Adrian Jr. · Inventors: Vuyk, Adrian Jr.; Roesner, Thomas G.; Bailey, Thomas F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention generally relates to an apparatus and method for operating a tool in a wellbore. In one aspect the apparatus includes a hydraulically operated tool and a wellbore tubular both in communication with a pressure sensing line. The hydraulically operated tool is responsive to a combination of a fluid pressure in the pressure sensing line and a manipulation of the wellbore tubular such response causing the tool to operate within the wellbore. In another aspect the invention provides a method for anchoring a well tool in a wellbore. The method includes the steps of lowering the well tool into the wellbore on a tubular string flowing fluid through the tubular string to begin …
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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 19, 2003 and granted May 31, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 19, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 19, 2025.
- 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.