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Expired Australian patentAustralia

Process for preparing amino acid

AU 1984025721 · Applicant: Kyowa Hakko Kogyo Co Ltd

AusPat record

Overview

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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 February 16, 1984 and granted May 24, 1988. 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 16, 2005.
  • A pharmaceutical extension adds at most five years, so even that would have ended by February 16, 2010.
  • 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 16, 1984
GrantedMay 24, 1988
Term ended byFebruary 16, 2005
Application numberAU 1984025721
Classification (IPC)C12P13/04 +2 more

Timeline

Timeline From IP Australia dates

1985198819911994199720002003Application filedFeb 16, 1984Patent grantedMay 24, 1988Term ended byFeb 16, 2005

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.