Harmonic ultrasound imaging with microbubbles
CA 2176206 C · Owner: Schutt, Ernest G. · Inventors: Schutt, Ernest G.
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
A method for ultrasonic harmonic imaging is disclosed which uses microbubbles , particularly selected for their properties of reradiating ultrasound energy at frequencies other than the exciting frequency. A contrast agent for ultrasonic harmonic imaging having the property of reradiating ultrasound energy at frequencies other than the exciting frequency is also disclosed.
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 26, 1995 and granted November 23, 1999. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 26, 2015.
- A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 26, 2017.
- 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.