Ultrasound contrast agent containing microparticles and gas micro-bubbles
CA 1232837 A · Owner: Schering Aktiengesellschaft · Inventors: Lange, Lothar; Zimmermann, Ingfried; Hilmann, Jurgen
Overview
Its claims, description and drawings are in the Canadian Patents Database.
Open the CIPO recordAbstract From the Canadian patent
An ultrasound contrast agent containing microparticles and gaseous micro-bubbles is described which contains, in a liquid carrier, a mixture of microparticles of a semi-solid or liquid surfaceactive substance and microparticles of a solid nonsurface-active substance. In the case of ultrasound images after intra-, venous administration it permits the contrasting of the left-hand side of the heart, the myocardium and other organs, such as the liver, the spleen the, kidneys and the right-hand side of the heart.
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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
- Granted February 16, 1988. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 16, 2005.
- 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.