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Expired Australian patentAustralia

Catalyst for the isomerisation of hydrocarbons preparation process and application of the said catalyst

AU 1987075729 · Applicant: Compagnie De Raffinage Et De Distribution Total France

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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 July 16, 1987 and granted August 20, 1990. 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 16, 2008.
  • A pharmaceutical extension adds at most five years, so even that would have ended by July 16, 2013.
  • 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 16, 1987
GrantedAugust 20, 1990
Term ended byJuly 16, 2008
Application numberAU 1987075729
Classification (IPC)B01J29/12 +2 more

Timeline

Timeline From IP Australia dates

1988199119941997200020032006Application filedJuly 16, 1987Patent grantedAug 20, 1990Term ended byJuly 16, 2008

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.