Methods and devices for repairing marine seismic cables
CA 2238074 C · Owner: Pettersen, Jan Bjornar · Inventors: Soraker, Dag; Thomson, Mallory; Aae, Bjorn
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method of replacing an electronics module in a seismic cable on the open sea (as well as a device for use in the replacing) where the replacement is carried out with the aid of a small boat equipped with cable rollers the method comprising positioning the part of the cable including the electronics module on a first and a second cable roller respectively in such a way that the electronics module and its couplings are located between the two rollers clamping the sections of cable on either side of the electronics module in a first and a second clamping arrangement (1, 2) respectively with the clamping arrangement connected together via a mechanical tensioning device (3), moving the clamped …
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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 July 14, 1997 and granted October 9, 2001. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 14, 2017.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by July 14, 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.