A tubular component provided with mutually oriented threaded elements, and a method for producing it
CA 2539019 C · Owner: Coulon, Jean-Luc · Inventors: Coulon, Jean-Luc; Micmande, Jean-Claude
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
In the method according to the invention after machining successively , respective threaded elements at both ends of the tubular component (10) a , second orientation gauge is screwed onto the second threaded element to check whether a mark (4) on the gauge comes into alignment with an orientation mark (11) which has been drawn on the component after the first element has been , machined and a first orientation gauge has been screwed onto the latter in axial alignment with a mark provided on this gauge. If not the machining of , the second element is repeated with parameters varied accordingly. Application to the drilling and operation of hydrocarbon wells.
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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, 2004 and granted June 5, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 22, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 22, 2026.
- 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.