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Expired Australian patentAustralia

Method for drilling and completing a hydrocarbon production well

AU 1999024186 · Applicant: Shell Internationale Research Maatschappij Bv

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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 December 28, 1998 and granted February 14, 2002. 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 December 28, 2019.
  • A pharmaceutical extension adds at most five years, so even that would have ended by December 28, 2024.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 28, 1998
GrantedFebruary 14, 2002
Term ended byDecember 28, 2019
Application numberAU 1999024186
Classification (IPC)E21B43/10

Timeline

Timeline From IP Australia dates

1999200220052008201120142017Application filedDec 28, 1998Patent grantedFeb 14, 2002Term ended byDec 28, 2019

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.