Coiled tubing handling apparatus
CA 2203593 A1 · Owner: Council, Malcolm N. · Inventors: Council, Malcolm N.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The coiled tubing handling apparatus includes a base and a frame. First and second pairs of plate members are coupled to the frame. A drive sprocket and an idler sprocket are coupled to the first pair of plate members for supporting a first continuous gripper chain with gripper members for movement along a first path. A drive sprocket and an idler sprocket are coupled to the second pair of plate members for supporting a second continuous chain with gripper members for movement along a second path. Means is provided for moving the gripper chains together along the two paths for gripping and moving a tube. Two pairs of idler sprockets are coupled to each of the first and second pairs of plate …
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 24, 1997. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended April 24, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by April 24, 2019.
- 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.