Patent Yard Sign in
Canadian application, no grantCanada

Operation management method of iron carbide production process

CA 2269913 A1 · Owner: Uchiyama, Yoshio · Inventors: Nakatani, Junya; Uchiyama, Yoshio; Inoue, Eiji

CIPO record

Overview

Drawings and full text

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

Open the CIPO record

Abstract From the Canadian patent

An operation management method of a production process for obtaining an iron carbide having a target composition in two stages of reaction procedures comprising conducting a second reaction operation for executing remaining reduction and carburization operations after a first reaction operation for partly reducing an iron-containing raw material for producing iron collecting , a solidified sample at an outlet of a reaction furnace after the first reaction operation, measuring a reaction rate of the solidified sample and , controlling an IC rate after the second reaction operation by controlling parameters capable of changing the reduction rate of the first reaction operation.

Read the whole patent

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 February 25, 1998. No grant is recorded for it in Canada; had it been granted, its 20-year term would have ended February 25, 2018.
  • A certificate of supplementary protection adds at most two years for a drug, so even that would have ended by February 25, 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.
FiledFebruary 25, 1998
GrantedNo grant recorded
Term endedFebruary 25, 2018
Patent numberCA 2269913 A1
Classification (IPC)C01B31/30 +2 more

Timeline

Timeline From CIPO dates

1999200120032005200720092011201320152017Application filedFeb 25, 1998Term endedFeb 25, 2018

Sources & verification

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