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Expired Canadian patentCanada

Intumescent coating compositions

CA 2593962 C · Owner: Taylor, Andrew Philip · Inventors: Taylor, Andrew Philip; Green, John Darryl; Butterfield, Simon

CIPO record

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Abstract From the Canadian patent

A liquid intumescent resin coating composition comprising at least one polymeric component, at least one ethylenically unsaturated monomeric component, and at least one intumescent ingredient. The coating composition further comprises at least one of Sodium Potassium Aluminium Silicate (Nepheline syenite) and Potassium Aluminium Silicate. The coating composition is curable to a solid state by free radical polymerisation.

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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 December 21, 2005 and granted December 3, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 21, 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.
FiledDecember 21, 2005
GrantedDecember 3, 2013
Term endedDecember 21, 2025
Patent numberCA 2593962 C
Classification (IPC)C09D5/18 +1 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedDec 21, 2005Patent grantedDec 3, 2013Term endedDec 21, 2025

Sources & verification

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