Mudline riser-casing connecting assembly
CA 2373005 A1 · Owner: Gallagher, Kevin T. · Inventors: Gallagher, Kevin T.; Bond, David F.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A mudline riser-casing connecting assembly for an underwater well where the, mudline riser-casing connecting assembly comprises a bore hole conductor casing adapted to be fixed in a bore hole in the mudline and terminating at its, upper end at or in the region of the mudline and which is adapted to support a fluid conveying riser and well bore casing the assembly further comprising an, annular landing shoulder on the inner face of the bore hole conductor casing at, a position spaced downwardly from the upper end of the bore hole conductor casing and an annular hanger assembly adapted to be mounted to the upper end of the well bore casing, the annular hanger assembly being engagable with …
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 February 25, 2002. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 25, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 25, 2024.
- 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.