Horizontal centrifugal pumping system
CA 2429584 C · Owner: Schlumberger Canada Limited · Inventors: Mascola, James V.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a thrust bearing assembly and a horizontal skid utilized in a horizontal pumping system. In one embodiment the thrust bearing assembly comprises a cylindrical open housing at least one radial ball bearing, at least one rotating seal and at least one axial thrust bearing. The axial thrust bearing does not have to be completely submerged in lubricant.
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 May 22, 2003 and granted July 26, 2011. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 22, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 22, 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.