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Expired Australian patentAustralia

Liquid oxalate stabilizers

AU 1994070342 · Applicant: Nalco Chemical Company

AusPat record

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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 18, 1994 and granted November 12, 1996. 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 18, 2015.
  • A pharmaceutical extension adds at most five years, so even that would have ended by August 18, 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 18, 1994
GrantedNovember 12, 1996
Term ended byAugust 18, 2015
Application numberAU 1994070342
Classification (IPC)C01F7/06 +2 more

Timeline

Timeline From IP Australia dates

1995199820012004200720102013Application filedAug 18, 1994Patent grantedNov 12, 1996Term ended byAug 18, 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.