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Expired Australian patentAustralia

Fischer-tropsch processes using xerogel and aerogel catalysts by destabilizing aqueous colloids

AU 1999055721 · Applicant: Conoco Inc

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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 August 19, 1999 and granted August 15, 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 August 19, 2020.
  • A pharmaceutical extension adds at most five years, so even that would have ended by August 19, 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.
FiledAugust 19, 1999
GrantedAugust 15, 2002
Term ended byAugust 19, 2020
Application numberAU 1999055721
Classification (IPC)B01J23/46 +2 more

Timeline

Timeline From IP Australia dates

2000200320062009201220152018Application filedAug 19, 1999Patent grantedAug 15, 2002Term ended byAug 19, 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.