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Expired Australian patentAustralia

Active material of positive electrode for non-aqueous electrolyte secondary battery and method for preparing the same and non-aqueous electrolyte secondary battery using the same

AU 1999032757 · Applicant: Sumitomo Metal Mining Company Limited

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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 9, 1999 and granted December 20, 2001. 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 9, 2020.
  • A pharmaceutical extension adds at most five years, so even that would have ended by March 9, 2025.
  • 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 9, 1999
GrantedDecember 20, 2001
Term ended byMarch 9, 2020
Application numberAU 1999032757
Classification (IPC)H01M10/05 +2 more

Timeline

Timeline From IP Australia dates

2000200320062009201220152018Application filedMarch 9, 1999Patent grantedDec 20, 2001Term ended byMarch 9, 2020

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.