Expandable tubular connection
CA 2819998 C · Owner: Baker Hughes Incorporated · Inventors: Baugh, John L.; Adam, Mark K.; Curley, Eric J.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A coupled connection, comprises a first tubular aligned on a longitudinal axis with a second tubular and joined by a coupling having a first end overlapping the first tubular and a second end overlapping the second tubular at least one of the ends of the coupling being held away from the adjacent tubular upon makeup of the coupling.
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 19, 2005 and granted January 5, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended April 19, 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.
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.