Pipe handling device, method and system
CA 2448841 C · Owner: Beierbach, Evert · Inventors: Nikiforuk, Kevin J.; Beierbach, Evert
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A pipe handling device for mounting to use with a top drive and possibly a pipe engaging apparatus includes a link arm having a first end pivotally connectable to move with the top drive and an outboard end pivotally connectable to a pipe elevator segment and a drive system to drive the outboard end of the link arm at least between a lower position and a raised position. A pipe handling system and method are also described.
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 November 10, 2003 and granted May 15, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 10, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 10, 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.