Altitude control apparatus for ground effect winged vehicle
CA 2025233 A1 · Owner: Osako, Tomishige · Inventors: Osako, Tomishige
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
Disclosed is an altitude control apparatus for a groundeffect winged vehicle utilizing the ground effect produced between its fuselage and wings and a water surface to fly at a very low altitude above the water surface with a slight distance therebetween, which comprises a sensor rendered always in contact with the water surface during navigation, for sending information on the distance between the water surface and the fuselage to a maneuvering system of said vehicle; and a connecting means for mechanically connecting the sensor to said vehicle; whereby an elevator controlled by the maneuvering system is operated based on the information on the distance between the water surface and the …
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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 12, 1990. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended September 12, 2010.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 12, 2012.
- 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.