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Expired Canadian patentCanada

Flame resistant filler cloth and mattresses incorporating same

CA 2586232 C · Owner: Mikaelian, Zareh · Inventors: Small, James Douglas, Jr.; Mikaelian, Zareh; Jones, Melanie Pearce

CIPO record

Overview

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Its claims, description and drawings are in the Canadian Patents Database.

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Abstract From the Canadian patent

A filler cloth includes cellulosic fibers treated with a flame retardant chemistry such that the filler cloth has a char length of less than about nine inches when tested in accordance with NFPA 701 such that thermal shrinkage of , the filler cloth at 400~F is less than about 35% in any direction and such , that the filler cloth maintains flame and heat resistant integrity when impinged with a gas flame in accordance with testing protocols set forth in Technical Bulletin 603 of the State of California Department of Consumer Affairs. The filler cloth cellulosic fibers are treated with a flame retardent chemistry such that the filler cloth has a Frazier air permeability of less than …

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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 August 24, 2005 and granted November 26, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended August 24, 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.
FiledAugust 24, 2005
GrantedNovember 26, 2013
Term endedAugust 24, 2025
Patent numberCA 2586232 C
Classification (IPC)A47C27/00 +2 more

Timeline

Timeline From CIPO dates

2006200820102012201420162018202020222024Application filedAug 24, 2005Patent grantedNov 26, 2013Term endedAug 24, 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.