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Expired Canadian patentCanada

Biocompatible polymers and methods of use

CA 2616865 C · Owner: Weiss, Lee E. · Inventors: Smith, Jason; Fisher, Gregory W.; Weiss, Lee E.

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Abstract From the Canadian patent

Compositions and methods for manufacturing polymers are disclosed. Compositions include novel plastics, including films and shaped forms comprising polymer matrices that are biologically compatible and biodegradable. Such plastics may comprise polymers derived from natural sources. Further, such plastics are useful in biological systems for wound repair, implants, stents, drug encapsulation and delivery and other , applications. The disclosed methods comprise mild manufacturing processes such that various additives, such as biologically active proteins sugars, lipids, and the like may be incorporated into the polymer matrix without subsequent loss of bioactivity during processing. …

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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 July 28, 2006 and granted July 8, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 28, 2026.
  • 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.
FiledJuly 28, 2006
GrantedJuly 8, 2014
Term endedJuly 28, 2026
Patent numberCA 2616865 C
Classification (IPC)C08L101/16 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedJuly 28, 2006Patent grantedJuly 8, 2014Term endedJuly 28, 2026

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