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Expired Canadian patentCanada

Method of producing a sintered product

CA 1317734 C · Owner: Davidson, Roderick Iain · Inventors: Davidson, Roderick Iain; Hornsby, Peter Ridsdale

CIPO record

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Abstract From the Canadian patent

A method of producing an at least partially sintered product, comprising introducing sinterable material into a mould or die and having at least one wall member which is adapted to produce a surface of the said product and which is microwave heatable, and subjecting said mould or die to microwave radiation so as to heat the mould or die and thereby effect at least partial sintering of the sinterable material, characterised in that the or each said wall member is made at least predominantly of microwave heatable material having a dielectric loss factor .epsilon."eff at the frequency of said microwave radiation of at least 0.1 and having a thermal conductivity of at least 10 Wm-1K-1.

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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 May 18, 1993. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended May 18, 2010.
  • 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 6, 1986
GrantedMay 18, 1993
Term endedMay 18, 2010
Patent numberCA 1317734 C
Classification (IPC)B29C67/04 +2 more

Timeline

Timeline From CIPO dates

19871990199319961999200220052008Application filedNov 6, 1986Patent grantedMay 18, 1993Term endedMay 18, 2010

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