Propelling system of small boat
CA 2254256 A1 · Owner: Lin, Yeun-Junn · Inventors: Lin, Yeun-Junn
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A boat propelling system is mounted in a water channel of the boat hull and composed of an engine, a transmission shaft driven by the engine an, impeller driven by the transmission shaft and provided with blades a, stator mounted behind the impeller and provided with stator vanes and a, nozzle located behind the stator. The impeller blades and the stator vanes are separated by a gap adjustable by the magnitude of jet flow of water.
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 18, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended November 18, 2018.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by November 18, 2020.
- 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.