Wireless communication system and method
CA 2411083 C · Owner: Schlumberger Canada Limited · Inventors: Zimmerman, Thomas H.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A wireless communication system for use in well subsea, and oilfield-related , environments employs one or more wireless network devices that offer shortrange , wireless communication between devices without the need for a central network which may have a device using a BLUETOOTH protocol. The system may be used for telemetry, depth correlation guidance systems, actuating tools, among other uses.
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 4, 2002 and granted July 16, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 4, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 4, 2024.
- 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.