Fiberoptic coupling
CA 2448686 C · Owner: Sorum, Anders · Inventors: Sorum, Anders; Neuenkirchen, Jens-Henrik
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A system for the transmission of signals to or between underwater installations, comprising optical fibres for the transmission of optical signals to/from a control unit or between the installations. The system comprises: A conversion unit 36 coupled to one of the ends of the optical fibre for conversion of the optical signals to high frequency radio signals and/or conversion of high frequency radio signals to optical signals a , conversion unit 37 comprising a coupling to an electrical power supply cable for the transmission of power to the underwater installation where the , coupling unit is coupled to the conversion unit for thereby to transfer the high frequency radio signal …
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 27, 2002 and granted July 10, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 27, 2022.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 27, 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.