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Expired Canadian patentCanada

Method and device for measuring the cooling curve of molten masses

CA 2522360 C · Owner: Dams, Francis · Inventors: Dams, Francis; Plessers, Jacques; Verstreken, Paul Clement

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 measuring a melt cooling curve and/or a heating curve for a melt sample with the aid of an optical fibre wherein the , immersion end of an optical fibre provided at least partially with a free surface at a certain distance is encompassed with a theoretically heatresistant reception space of the sample. Said immersion end of the optical fibre is immersed into the melt, thereby forming a sample in the sample reception space which is afterwards removed together with the sample and optical fibre from a molten metal and afterwards the sample cooling curve of , the sample and/or the temperature profile during heating are measured after the sample …

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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 June 24, 2004 and granted June 17, 2014. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended June 24, 2024.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by June 24, 2026.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 24, 2004
GrantedJune 17, 2014
Term endedJune 24, 2024
Patent numberCA 2522360 C
Classification (IPC)G01K13/12 +1 more

Timeline

Timeline From CIPO dates

2005200720092011201320152017201920212023Application filedJune 24, 2004Patent grantedJune 17, 2014Term endedJune 24, 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.