A system of underwater power generation
CA 2540574 C · Owner: Hope, Raymond Lindsay · Inventors: Campbell, Gary James; Keating, Carmen Patricia; Hope, Raymond Lindsay
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An underwater power generation system (10) that has a line member (30) that moves along a defined pathway. A number of foils (40) drive the , line member using the flow of a water current. The defined pathway lies in a plane , that is substantially perpendicular to the flow of water current. A power takeoff , (114, 124) is connected to the line to produce power.
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 September 20, 2004 and granted July 2, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 20, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 20, 2026.
- 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.