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Expired Canadian patentCanada

Thermopolymeric switching mediums and temperature monitoring devices embodying such mediums

CA 2559573 C · Owner: Ribi, Hans O. · Inventors: Ribi, Hans O.; Thompson, Gary M.

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Abstract From the Canadian patent

The use of thermopolymeric switching medium in temperature monitoring devices in which thermopolymeric switching medium is used as a retaining materials and are based on polymeric compositions that can be designed and programmed to meet selective parameters in production and performance. The thermopolymeric switching mediums can be formulated in a pure state or can include additives such as fillers or active materials to impact the characteristics of the thermopolymeric switching component.

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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 16, 2005 and granted May 13, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 16, 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.
FiledMarch 16, 2005
GrantedMay 13, 2014
Term endedMarch 16, 2025
Patent numberCA 2559573 C
Classification (IPC)—

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedMarch 16, 2005Patent grantedMay 13, 2014Term endedMarch 16, 2025

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