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Australian application, no grantAustralia

Improvements inthe art or method of etching steel or other like plates

AU 1918007973 · Applicant: William Sylvester Eaton

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 13, 1918. Even if it was granted, its term would have ended by July 13, 1939.
  • A pharmaceutical extension adds at most five years, so even that would have ended by July 13, 1944.
  • 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 13, 1918
GrantedNo grant recorded
Term ended byJuly 13, 1939
Application numberAU 1918007973
Classification (IPC)—

Timeline

Timeline From IP Australia dates

1919192219251928193119341937Application filedJuly 13, 1918Term ended byJuly 13, 1939

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.