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Expired Canadian patentCanada

Bone cement compositions having fiber-reinforcement and/or increased flowability

CA 2539751 C · Owner: Armitage, Bryan Monro · Inventors: Ison, Ira; Fulmer, Mark; Schiffer, William

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 in general to implantable compositions and , method for preparing same, containing a calcium salt-containing component optionally demineralized bone, a plurality of discrete fibers optionally a , flow additive, and optionally continuous reinforcing fibers or an array of organized fibers in the form of mesh. Advantageously the discrete fibers have , a specific aspect ratio (length/diameter) from about 50:1 to about 1000:1. The addition of a small amount of discrete fibers and/or the continuous reinforcing fibers or fiber mesh can cause drastic increases in certain mechanical properties including flexural strength flexural strength, flexural , toughness …

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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 September 7, 2004 and granted April 26, 2016. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended September 7, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by September 7, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 7, 2004
GrantedApril 26, 2016
Term endedSeptember 7, 2024
Patent numberCA 2539751 C
Classification (IPC)A61L27/46 +2 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedSep 7, 2004Patent grantedApril 26, 2016Term endedSep 7, 2024

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