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Expired Australian patentAustralia

Mining cutter bit holder and mounting assembly

AU 1979050887 · Applicant: Joy Manufacturing Co

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 September 17, 1979 and granted March 15, 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 September 17, 2000.
  • A pharmaceutical extension adds at most five years, so even that would have ended by September 17, 2005.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 17, 1979
GrantedMarch 15, 1984
Term ended bySeptember 17, 2000
Application numberAU 1979050887
Classification (IPC)E21C35/19 +1 more

Timeline

Timeline From IP Australia dates

1980198319861989199219951998Application filedSep 17, 1979Patent grantedMarch 15, 1984Term ended bySep 17, 2000

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.