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Expired Canadian patentCanada

Device for setting a spline

CA 2116423 C · Owner: Howmedica Gmbh · Inventors: Robioneck, Bernd; Metz-Stavenhagen, Peter

CIPO record

Overview

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

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Abstract From the Canadian patent

The present invention relates to a device for setting a spline having damaged vertebras, comprising an anchoring element including a shaft portion (16) to be attached to spaced vertebras the free end of said anchoring element including a slot (24) for receiving a distracting or respectively, compressing bar, (40), and a cap nut (42) to be screwed onto an outer thread (32) provided in theregion of the receiving slot to urge an axial fixing portion (44) towards the bar received in said receiving slot. The invention is defined in that receiving slot (24) is formed in a separate swivel head (20) including an inner end in the shape of a ball receiving portion (24) which has an aperture (28) …

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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 February 24, 1994 and granted November 17, 1998. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended February 24, 2014.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 24, 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.
FiledFebruary 24, 1994
GrantedNovember 17, 1998
Term endedFebruary 24, 2014
Patent numberCA 2116423 C
Classification (IPC)A61B17/58 +2 more

Timeline

Timeline From CIPO dates

1995199719992001200320052007200920112013Application filedFeb 24, 1994Patent grantedNov 17, 1998Term endedFeb 24, 2014

Sources & verification

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