Ultrasonic fuel-gauging system
CA 2514746 C · Owner: Rassain, Mostafa · Inventors: Banks, David L.; Anderson, David M.; Rassain, Mostafa
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
The invention provides a fuel-tank system with an ultrasonic fuel--gauging system for an aircraft. The fuel-tank system includes a fuel tank, a , transducer carrier tape covered with a separation barrier and coupled to a , surface of the fuel tank and at least one ultrasonic transducer attached to the , transducer carrier tape. An ultrasonic signal from at least one ultrasonic transducer is reflected from a fuel-air surface and a reflected signal is received by at least one ultrasonic transducer to determine a fuel level in the , fuel tank.
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 January 28, 2004 and granted August 14, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 28, 2024.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 28, 2026.
- 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.