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Australian application, no grantAustralia

Improved process forthe treatment of water for boiler feed purposes

AU 1924018610 · Applicant: John Killer

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 10, 1921. Even if it was granted, its term would have ended by July 10, 1942.
  • A pharmaceutical extension adds at most five years, so even that would have ended by July 10, 1947.
  • 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 10, 1921
GrantedNo grant recorded
Term ended byJuly 10, 1942
Application numberAU 1924018610
Classification (IPC)C02F1/58

Timeline

Timeline From IP Australia dates

1922192519281931193419371940Application filedJuly 10, 1921Term ended byJuly 10, 1942

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.