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Expired Canadian patentCanada

Ultrasound catheter

CA 2133475 C · Owner: Kiepen, Horst F. · Inventors: Kiepen, Horst F.; Eberle, Michael J.; Rizzuti, Gary P.

CIPO record

Overview

Drawings and full text

Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

An ultrasound catheter is disclosed for providing substantially real-time images of small cavities. The ultrasound catheter is characterized by separate and distinct materials for backing the transducers and for carrying the electronics components. The separate materials comprise an electronics carrier meeting the requirements for holding the integrated circuitry of the ultrasound device and a backing material displaying superior characteristics relating to reducing ringing and minimizing the effect of other sources of signal degradation in the transducer assembly. Also in, accordance with the present invention a technique is, described for connecting the conductor lines of the separate …

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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

  • Filed January 14, 1994 and granted July 14, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended January 14, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by January 14, 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.
FiledJanuary 14, 1994
GrantedJuly 14, 1998
Term endedJanuary 14, 2014
Patent numberCA 2133475 C
Classification (IPC)A61B8/12 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedJan 14, 1994Patent grantedJuly 14, 1998Term endedJan 14, 2014

Sources & verification

Everything on this page comes from the CIPO record linked above. Contains information licensed under the Open Government Licence – Canada.