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Canadian application, no grantCanada

Method of monitoring and controlling the composition of sintering atmosphere

CA 2291148 A1 · Owner: Hoganas Ab · Inventors: Arvidsson, Johan; Eriksson, Ola

CIPO record

Overview

Drawings and full text

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

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Abstract From the Canadian patent

The invention concerns a method of monitoring and controlling the furnace atmosphere when sintering PM compacts. According to the invention the gases , determining the carbon and oxygen potentials are measured continuously.

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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 May 27, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended May 27, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by May 27, 2020.
  • We check Canadian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 27, 1998
GrantedNo grant recorded
Term endedMay 27, 2018
Patent numberCA 2291148 A1
Classification (IPC)B22F3/00 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedMay 27, 1998Term endedMay 27, 2018

Sources & verification

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