Portable paddle assembly for a watercraft
CA 2287594 A1 · Owner: Brooks, Grant · Inventors: Brooks, Grant
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A propulsion system for a personal watercraft comprises a pair of paddle assemblies and, a drive shaft extending between the paddle assemblies to induce co joint rotation thereof. A, drive mechanism is coupled to the drive shaft and a pair of supports connect the drive shaft to the, watercraft on opposite sides thereof to permit rotation about a common axis. The drive shaft is, connected to the paddle assemblies by a releasable coupling to permit ready disassembly thereof. The paddle assembly comprises a central hub and a plurality of paddles coupled to and radially, extending from the central hub. Each of the plurality of paddles comprises a front surface and a, rear surface, …
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 October 26, 1999. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 26, 2019.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 26, 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.