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Australian application, no grantAustralia

Method of operating internal combustion engines and improvements in engines forthe employment of same

AU 1920017425 · Applicant: Franz Madler

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 August 23, 1920. Even if it was granted, its term would have ended by August 23, 1941.
  • A pharmaceutical extension adds at most five years, so even that would have ended by August 23, 1946.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 23, 1920
GrantedNo grant recorded
Term ended byAugust 23, 1941
Application numberAU 1920017425
Classification (IPC)F02D7/02

Timeline

Timeline From IP Australia dates

1921192419271930193319361939Application filedAug 23, 1920Term ended byAug 23, 1941

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.