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Expired Australian patentAustralia

Method for producing aqueous solution of chlorination product of zirconium

AU 2004279711 · Applicant: Daiichi Kigenso Kagaku Kogyo Co Ltd

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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 12, 2004 and granted September 10, 2009. 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 12, 2025.
  • Term extensions apply only to pharmaceutical patents, and it isn't classified as one.
  • 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 12, 2004
GrantedSeptember 10, 2009
Term ended byOctober 12, 2025
Application numberAU 2004279711
Classification (IPC)C01G25/04

Timeline

Timeline From IP Australia dates

2005200820112014201720202023Application filedOct 12, 2004Patent grantedSep 10, 2009Term ended byOct 12, 2025

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.