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Expired Canadian patentCanada

Bone plate

CA 2189744 C · Owner: Synthes Usa, Llc · Inventors: Talos, Gilbert; Schmoker, Roland

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

The invention concerns a bone plate which is provided with a plurality of holes, disposed in the direction of the longitudinal axis of the plate, for accommodating bone screws. The diameter (DL) of at least one hole - measured in the direction of the longitudinal axis of the plate - is larger than the diameter (DQ) of this hole measured perpendicular to the longitudinal axis of the plate. At least one of these holes with a smaller diameter (DQ) perpendicular to the longitudinal axis of the plate comprises in the region of this diameter (DQ) a partial thread for receiving a bone screw with a threaded head.

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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 March 27, 1995 and granted September 16, 2003. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 27, 2015.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by March 27, 2017.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 27, 1995
GrantedSeptember 16, 2003
Term endedMarch 27, 2015
Patent numberCA 2189744 C
Classification (IPC)A61B17/80

Timeline

Timeline From CIPO dates

1996199820002002200420062008201020122014Application filedMarch 27, 1995Patent grantedSep 16, 2003Term endedMarch 27, 2015

Sources & verification

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