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Expired Canadian patentCanada

Coated fibrous nodules and insulation product

CA 2551003 C · Owner: Fay, Ralph Michael · Inventors: Smith, John Brooks; Fay, Ralph Michael; Fellinger, Thomas John

CIPO record

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Abstract From the Canadian patent

Coated fibrous nodules suitable for forming an insulation product are provided, comprising fibrous nodules formed from inorganic fibers wherein a , majority of the fibrous nodules has a maximum dimension of about one-half inch, and wherein the fibrous nodules are coated with a solution comprising water and a water soluble binder. Also provided is an insulation product formed from the coated fibrous nodules.

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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 22, 2004 and granted July 9, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended December 22, 2024.
  • 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 22, 2004
GrantedJuly 9, 2013
Term endedDecember 22, 2024
Patent numberCA 2551003 C
Classification (IPC)C08K3/40

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedDec 22, 2004Patent grantedJuly 9, 2013Term endedDec 22, 2024

Sources & verification

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