Hydrodynamic and reinforced catamaran hull design
CA 2262880 A1 · Owner: Schulte, Mark · Inventors: Schulte, Mark
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An air propelled boat. It is provided with a pair of catamaran hulls, each having a unique catamaran hull design particularly adaptable for travel over land water, ice or, snow. Each catamaran hull has a pair of centered concave flutes extending from the aft end of the body to the forward end of the nose. At the nose end, the flutes are reduced in concavity and inclined longitudinally and laterally. Both inclinations are reduced in slope forward. The flutes guide water outward and under the hull and move the water hull contact aft. This decreases hull drag and increases lift. The hull bottoms are formed into a central longitudinal support flat which is flanked by parallel outboard support …
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 February 24, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 24, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 24, 2021.
- 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.