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Expired Canadian patentCanada

Method for the pressure-free sintering of metal alloys and use thereof in the production of hollow spheres

CA 2614007 C · Owner: Bacos, Marie-Pierre · Inventors: Bacos, Marie-Pierre; Paun, Florin; Nadler, Jason

CIPO record

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Abstract From the Canadian patent

The invention relates to a method for the pressure-free sintering of metal alloys and to the use thereof in the production of hollow spheres. According to the invention hollow metal spheres are heated under a high vacuum in the presence of an organic material to a temperature close to the melting temperature of a eutectic between carbon from the organic material and the metal components of said spheres.

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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 July 7, 2006 and granted April 16, 2013. A Canadian patent filed from October 1, 1989 lasts 20 years from filing, so its term ended July 7, 2026.
  • 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.
FiledJuly 7, 2006
GrantedApril 16, 2013
Term endedJuly 7, 2026
Patent numberCA 2614007 C
Classification (IPC)B22F5/10 +2 more

Timeline

Timeline From CIPO dates

2007200920112013201520172019202120232025Application filedJuly 7, 2006Patent grantedApril 16, 2013Term endedJuly 7, 2026

Sources & verification

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