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Expired Australian patentAustralia

A method of estimating properties of a multi-component fluid using pseudocomponents

AU 2000021750 · Applicant: Exxonmobil Upstream Research Company

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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 10, 1999 and granted September 18, 2003. 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 10, 2020.
  • A pharmaceutical extension adds at most five years, so even that would have ended by December 10, 2025.
  • 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 10, 1999
GrantedSeptember 18, 2003
Term ended byDecember 10, 2020
Application numberAU 2000021750
Classification (IPC)G01F1/74 +2 more

Timeline

Timeline From IP Australia dates

2000200320062009201220152018Application filedDec 10, 1999Patent grantedSep 18, 2003Term ended byDec 10, 2020

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.