Jet pump exhaust system
CA 2131346 C · Owner: Craig, W. Scott · Inventors: Lam, Edward K.; Hall, Charles B.; Rogers, Duane E.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An exhaust system for a marine jet pump with an internal combustion power head includes a muffler having a muffler inlet in fluid communication with the power head to receive exhaust gases therefrom, and a muffler outlet for emitting the exhaust gases, the muffler further including an exhaust high rise portion being vertically displaced from the inlet and the outlet to prevent the entry into the muffler inlet of water passing into the interior through the muffler outlet.
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 September 1, 1994 and granted April 6, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 1, 2014.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 1, 2016.
- 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.