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Australian application, no grantAustralia

Process forthe manufacture of ethers from alcohols

AU 1930028126 · Applicant: Naamlooze Vennootschap De Bataafsche Petroleum Maatschappij

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 July 31, 1931. Even if it was granted, its term would have ended by July 31, 1952.
  • A pharmaceutical extension adds at most five years, so even that would have ended by July 31, 1957.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 31, 1931
GrantedNo grant recorded
Term ended byJuly 31, 1952
Application numberAU 1930028126
Classification (IPC)C07C41/09 +2 more

Timeline

Timeline From IP Australia dates

1932193519381941194419471950Application filedJuly 31, 1931Term ended byJuly 31, 1952

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.