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Expired Canadian patentCanada

Device for adjusting the length of middle ear implants

CA 2557812 C · Owner: Kurz, Heinz · Inventors: Steinhardt, Uwe; Kurz, Heinz

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 determining the required length of a middle ear prosthesis having a disk-shaped base part (10) to which prosthesis mockups (11 11', 11 , of different lengths are fastened which, after being detached from the base part , (10), can be inserted by means of an applicator into the middle ear of a patient , during an operation for length determination purposes in which the base part , (10) is provided with accessories for measuring and/or shaping the middle ear prosthesis to be inserted. This provides the operator with an even more simplified handling of prosthesis mockups during the operation; no additional separate parts have to be used and instead the handling means are …

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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 June 29, 2005 and granted August 28, 2012. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 29, 2025.
  • Certificates of supplementary protection extend only drug patents, and it isn't classified as one.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 29, 2005
GrantedAugust 28, 2012
Term endedJune 29, 2025
Patent numberCA 2557812 C
Classification (IPC)A61B90/00 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedJune 29, 2005Patent grantedAug 28, 2012Term endedJune 29, 2025

Sources & verification

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