Accurate tuning of marine control systems
CA 2069803 C · Owner: Raffin, Robert N. · Inventors: Raffin, Robert N.; Bjorknas, John I. Sr.; Wiggins, Robert James
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A lever actuated marine control systems is fine tuned using at least one manual switch which can be operated independently in the position of the manual lever. The manual switch and the lever provide control signals to a CPU. Operation of the manual switch acts to increment the position of the manual lever by controlling a lever motor and increments the parameter to be controlled by transmitting an incremented value to the control apparatus.
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 28, 1992 and granted December 23, 1997. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended May 28, 2012.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 28, 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.