Boat
CA 1184442 A · Owner: Sorensen, George C. · Inventors: Sorensen, George C.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
BOAT, Abstract, A boat which greatly reduces ventilation under a boat and cavitation in an outboard motor's propeller is disclosed. Preferably a skeg and hulls are arranged to produce a zone behind the boat which is substantially free of froth and in which a propeller may operate efficiently. Preferably the skeg is, trapezoidal in cross-section with substantially planar surfaces. It runs forward from its broad end to its source which prefer-, ably lies in a section about 60-75% of the boat's length forward from the stern. Channels running between the skeg and hulls uniformly decrease in area as they run aftward. Thus lift of, the stern is increased by the increase in the apparent 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
- Granted March 26, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended March 26, 2002.
- 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.