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Expired Australian patentAustralia

Process for the preparation of a hydrogen-rich stream

AU 2004226237 · Applicant: Haldor Topsoe As

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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 March 25, 2004 and granted November 26, 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 March 25, 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.
FiledMarch 25, 2004
GrantedNovember 26, 2009
Term ended byMarch 25, 2025
Application numberAU 2004226237
Classification (IPC)C01B3/16 +2 more

Timeline

Timeline From IP Australia dates

2005200820112014201720202023Application filedMarch 25, 2004Patent grantedNov 26, 2009Term ended byMarch 25, 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.