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Expired Canadian patentCanada

Delayed memory device

CA 2507449 C · Owner: Quint, Bodo · Inventors: Michlitsch, Kenneth; Von Oepen, Randolf; Eckert, Karl-Ludwig

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

A device for reshaping a cardiac valve (26) which is elongate and has such , dimensions as to be insertable into a cardiac vessel (24). The device has two states, in a first state (K) of which the device has a shape that is adaptable to the shape of the vessel (24), and to the second state (k') of which the device is transferable from said first state (K). Further the device , comprises a fixing means (22,23;22a,23a) for fixing the ends of the device within the vessel (24), when the device is first positioned therein a shape-, changing member (20;20a) for transferring the device to the second state (K') by reshaping it, and a delay means (21;21a) for delaying said reshaping until the …

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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 December 20, 2002 and granted December 18, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 20, 2022.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by December 20, 2024.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 20, 2002
GrantedDecember 18, 2012
Term endedDecember 20, 2022
Patent numberCA 2507449 C
Classification (IPC)A61F2/24 +2 more

Timeline

Timeline From CIPO dates

2003200520072009201120132015201720192021Application filedDec 20, 2002Patent grantedDec 18, 2012Term endedDec 20, 2022

Sources & verification

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