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Expired Australian patentAustralia

Heat resisting alloy for rolls

AU 1982080647 · Applicant: Kubota Ltd

AusPat record

Overview

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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 February 22, 1982 and granted July 26, 1984. An Australian standard patent lasts 20 years from its date of patent, which is at most a year after this filing, so its term ended by February 22, 2003.
  • A pharmaceutical extension adds at most five years, so even that would have ended by February 22, 2008.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 22, 1982
GrantedJuly 26, 1984
Term ended byFebruary 22, 2003
Application numberAU 1982080647
Classification (IPC)C03B13/16 +1 more

Timeline

Timeline From IP Australia dates

1983198619891992199519982001Application filedFeb 22, 1982Patent grantedJuly 26, 1984Term ended byFeb 22, 2003

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.