Kayak righting method and apparatus
CA 2069399 C · Owner: Blachford, Alistair Maitland · Inventors: Blachford, Alistair Maitland
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The present invention provides a method and an apparatus for reducing the skill required of a paddler to right a capsized kayak without exiting it, and to thus avoid the dangers associated with exiting a kayak after capsize. In broad terms the paddler is, provided with a simple and rapid means of creating a buoyant force to one side of the capsized kayak, which can be used to produce a generous amount of torque for righting. More specifically an, inflatable flotation device is held in place on the deck of the kayak and is provided with a handle. Upon capsize the paddler grasps and pulls the handle, whereupon the flotation element is released from its securing container and automatically …
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 May 25, 1992 and granted April 8, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 25, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 25, 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.