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Australian application, no grantAustralia

A method of preventing surface flaws on steel strip in heating furnaces

AU 1973057492 · Applicant: Nippon Kokan Kabushiki Kaisha

AusPat record

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Its specification, documents and status are on IP Australia's AusPat.

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Listed from its IP Australia record in Patent Yard's archive of Australian patents past their term. Its claims, description and drawings are in the AusPat record and on Google Patents, and the Claude kit works from them.

Why it's free to use

  • Filed June 28, 1973. Even if it was granted, its term would have ended by June 28, 1994.
  • A pharmaceutical extension adds at most five years, so even that would have ended by June 28, 1999.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 28, 1973
GrantedNo grant recorded
Term ended byJune 28, 1994
Application numberAU 1973057492
Classification (IPC)C21D9/56 +1 more

Timeline

Timeline From IP Australia dates

1974197719801983198619891992Application filedJune 28, 1973Term ended byJune 28, 1994

Sources & verification

Everything on this page comes from the IP Australia record linked above. Data from IP Australia's IPGOD, licensed under CC BY 2.5 AU.