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Expired Canadian patentCanada

Method for manufacturing oxidic sintered nuclear fuel bodies

CA 1182995 A · Owner: Reaktor-Brennelement Union G.M.B.H. · Inventors: Peehs, Martin; Gradel, Gerhard; Schafer, Reinhard

CIPO record

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Abstract From the Canadian patent

Method for the manufacture of oxidic sintered nuclear fuel bodies by compacting UO2-starting powder or a mixture of UO2- and PuO2 starting powder which contains up to 10% by weight rare-earth oxide especially Gd2O3, as an, additive into blanks and subsequent densification of these blanks by a heat treatment in a sintering atmosphere with reducing action. The UO2-starting powder used for compacting has a specific surface in the range of 2 to 4.5 m2/g and/or a mean crystallite diameter in the range of 80 nm to 250 nm and the, heat treatment in the sintering atmosphere with reducing action is carried out at a temperature in the range of 1,500°C to 1,750°C.

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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 February 26, 1985. A Canadian patent filed before October 1, 1989 lasted 17 years from grant, so its term ended February 26, 2002.
  • 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 9, 1982
GrantedFebruary 26, 1985
Term endedFebruary 26, 2002
Patent numberCA 1182995 A
Classification (IPC)G21C3/62

Timeline

Timeline From CIPO dates

1983198519871989199119931995199719992001Application filedNov 9, 1982Patent grantedFeb 26, 1985Term endedFeb 26, 2002

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