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Expired Australian patentAustralia

Amino acid derivative

AU 1994069366 · Applicant: Eisai Co Ltd

AusPat record

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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 June 10, 1994 and granted November 20, 1997. 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 June 10, 2015.
  • A pharmaceutical extension adds at most five years, so even that would have ended by June 10, 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.
FiledJune 10, 1994
GrantedNovember 20, 1997
Term ended byJune 10, 2015
Application numberAU 1994069366
Classification (IPC)A61K31/47 +1 more

Timeline

Timeline From IP Australia dates

1995199820012004200720102013Application filedJune 10, 1994Patent grantedNov 20, 1997Term ended byJune 10, 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.