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Expired Australian patentAustralia

Production of synthesis gas with increased h2/co ratio

AU 1985048369 · 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 October 8, 1985 and granted July 21, 1988. 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 October 8, 2006.
  • A pharmaceutical extension adds at most five years, so even that would have ended by October 8, 2011.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 8, 1985
GrantedJuly 21, 1988
Term ended byOctober 8, 2006
Application numberAU 1985048369
Classification (IPC)C10J3/00 +2 more

Timeline

Timeline From IP Australia dates

1986198919921995199820012004Application filedOct 8, 1985Patent grantedJuly 21, 1988Term ended byOct 8, 2006

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.