Wind powered or assisted hydrofoil craft
CA 2111239 A1 · Owner: Duncan, Ian James · Inventors: Duncan, Ian James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention relates to wind powered or assisted craft particularly hydrofoil craft, which are capable of travelling considerably faster than wind speed over a wide range of wind speeds and directions. The invention has application from single person leisure and sports craft through to large commercial cargo and passenger vessels, although certain aspects of the invention will find application to wind powered or assisted craft or vehicles for use on land and to hydrofoil supported craft in general. Whilst in the case of smaller craft, wind power may provide the sole means of propulsion, in the case of larger craft the provision of auxiliary power sources is likely, as an aid to …
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 June 11, 1992. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended June 11, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 11, 2014.
- 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.