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Expired Australian patentAustralia

Synthesis of bisalkyl cyclopentadienyl metallocenes

AU 2000053077 · Applicant: Boulder Scientific Company

AusPat record

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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 May 30, 2000 and granted January 8, 2004. 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 May 30, 2021.
  • A pharmaceutical extension adds at most five years, so even that would have ended by May 30, 2026.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 30, 2000
GrantedJanuary 8, 2004
Term ended byMay 30, 2021
Application numberAU 2000053077
Classification (IPC)C07C1/32 +2 more

Timeline

Timeline From IP Australia dates

2001200420072010201320162019Application filedMay 30, 2000Patent grantedJan 8, 2004Term ended byMay 30, 2021

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.