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Expired Australian patentAustralia

Minimizing evaporator scaling and recovery of salts during gasification

AU 1997040407 · Applicant: Texaco Development Corporation

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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 July 14, 1997 and granted January 20, 2000. 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 July 14, 2018.
  • A pharmaceutical extension adds at most five years, so even that would have ended by July 14, 2023.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 14, 1997
GrantedJanuary 20, 2000
Term ended byJuly 14, 2018
Application numberAU 1997040407
Classification (IPC)C10J3/72 +2 more

Timeline

Timeline From IP Australia dates

1998200120042007201020132016Application filedJuly 14, 1997Patent grantedJan 20, 2000Term ended byJuly 14, 2018

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.