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Expired Canadian patentCanada

Method for the production of insulating materials made of mineral fibersand filling for a melting aggregate for the production of a mineral melt

CA 2629410 C · Owner: Rockwool International A/S · Inventors: Christmann, Volker; Nykiel, Guido; Gonzalez, Caparros Miguel

CIPO record

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

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Abstract From the Canadian patent

The invention relates to a method for the production of insulating materials made of mineral fibers, wherein a melting unit is filled with a meltable starting , material for the production of a silicate melt and a combustible melt. The combustible comprises a primary energy carrier and a substituent and the melt produced from the starting material is supplied to a defibrator wherein the melt , is defibrated into preferably micro-fine fibers and the fibers are placed on a conveyor device as non-wovens. In order to further develop an inventive method in such a way that the implementation can be carried out in a more economical manner by a further development of raw material sources …

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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 November 11, 2004 and granted December 31, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended November 11, 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.
FiledNovember 11, 2004
GrantedDecember 31, 2013
Term endedNovember 11, 2024
Patent numberCA 2629410 C
Classification (IPC)C03C1/00

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedNov 11, 2004Patent grantedDec 31, 2013Term endedNov 11, 2024

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