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Expired Canadian patentCanada

Aliphatic ester compounds as slip agents in polyester polymers

CA 2599237 C · Owner: Mccoy, Philip · Inventors: Mccoy, Philip; Maltby, Adam; Parker, David Andrew

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Abstract From the Canadian patent

Use of a composition consisting essentially of a mixture of aliphatic esters as a slip agent in a polyester polymer said composition comprising at least , two esters selected from the group comprising: Myristyl myristate Myristyl , palmitate, palmityl myristate paimityl palmitate, palmityl stearate, stearyl myristate, stearyl palmitate, stearyl stearate stearyl arachidate and stearyl , behenate.

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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 2, 2006 and granted August 6, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended March 2, 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.
FiledMarch 2, 2006
GrantedAugust 6, 2013
Term endedMarch 2, 2026
Patent numberCA 2599237 C
Classification (IPC)C08K5/10 +1 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedMarch 2, 2006Patent grantedAug 6, 2013Term endedMarch 2, 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.