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Expired Australian patentAustralia

Electrochemical process for the replacement of halogen atoms in an organic compound

AU 1988011907 · Applicant: Hoechst Aktiengesellschaft

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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 February 17, 1988 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 February 17, 2009.
  • A pharmaceutical extension adds at most five years, so even that would have ended by February 17, 2014.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 17, 1988
GrantedAugust 20, 1990
Term ended byFebruary 17, 2009
Application numberAU 1988011907
Classification (IPC)C07C51/377 +1 more

Timeline

Timeline From IP Australia dates

1989199219951998200120042007Application filedFeb 17, 1988Patent grantedAug 20, 1990Term ended byFeb 17, 2009

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.