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Expired Australian patentAustralia

Low inductance anode-cathode r-c circuit for gate turn-off power thyristor

AU 1985050091 · Applicant: Daimlerchrysler Ag

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 November 20, 1985 and granted February 8, 1989. 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 November 20, 2006.
  • A pharmaceutical extension adds at most five years, so even that would have ended by November 20, 2011.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 20, 1985
GrantedFebruary 8, 1989
Term ended byNovember 20, 2006
Application numberAU 1985050091
Classification (IPC)H02M7/155 +2 more

Timeline

Timeline From IP Australia dates

1986198919921995199820012004Application filedNov 20, 1985Patent grantedFeb 8, 1989Term ended byNov 20, 2006

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.