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Expired Australian patentAustralia

Process for upgrading a paraffinic feedstock

AU 1994070239 · Applicant: Shell Internationale Research Maatschappij Bv

AusPat record

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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 August 11, 1994 and granted February 26, 1997. 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 11, 2015.
  • A pharmaceutical extension adds at most five years, so even that would have ended by August 11, 2020.
  • 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 11, 1994
GrantedFebruary 26, 1997
Term ended byAugust 11, 2015
Application numberAU 1994070239
Classification (IPC)C07C2/58 +2 more

Timeline

Timeline From IP Australia dates

1995199820012004200720102013Application filedAug 11, 1994Patent grantedFeb 26, 1997Term ended byAug 11, 2015

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.