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Expired Canadian patentCanada

Fire retardant compositions and use thereof

CA 1296463 C · Owner: Eskind, Larry G. · Inventors: Eskind, Larry G.

CIPO record

Overview

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Abstract From the Canadian patent

A fire retardant composition comprising in percent by, weight of the non-volatile solids therein a non-fibrous, aqueous mixture of:, (a) 25-90% of an emulsified halogen containing vinyl polymer limited to a maximum bound halogen of 58% on a dry polymer weight basis, selected to bind the composition to a combustible, resilient, foamed or fibrous substrate; (b) 0-4.8% of a metal oxide gas and fume limiting compound; and, (c) 1-40% of an afterglow limiting component selected from halogenated naturally occurring oils and fats having, a maximum halogen content of 50% and organo phosphonates, halogenated organo phosphonates and substituted organo phosphonates.

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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

  • Granted February 25, 1992. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 25, 2009.
  • 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 17, 1987
GrantedFebruary 25, 1992
Term endedFebruary 25, 2009
Patent numberCA 1296463 C
Classification (IPC)C09K21/14 +2 more

Timeline

Timeline From CIPO dates

19881991199419972000200320062009Application filedMarch 17, 1987Patent grantedFeb 25, 1992Term endedFeb 25, 2009

Sources & verification

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