Directable exhaust for water sport tow boat
CA 2500357 A1 · Owner: Lee, Richard D. · Inventors: Lopes, Timothy M.; Lee, Richard D.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The directable exhaust for a wake surfing power boat permits directing exhaust out of either the port or starboard side of a boat opposite the wake wave on which a wake surfer is surfing to avoid exposure of the person to the exhaust fumes. Valves, which direct the exhaust out of the side of the boat are , linked such that the exhaust can be directed out of either the port or starboard side of the boat away from the wake surfer by a single control available to the boat operator.
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 29, 2003. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended October 29, 2023.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by October 29, 2025.
- 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.