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Australian application, no grantAustralia

Improvements in airgas machines

AU 1914012429 · Applicant: Alfred Ernest Ditton

AusPat record

Overview

Drawings and full text

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 March 11, 1914. Even if it was granted, its term would have ended by March 11, 1935.
  • A pharmaceutical extension adds at most five years, so even that would have ended by March 11, 1940.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 11, 1914
GrantedNo grant recorded
Term ended byMarch 11, 1935
Application numberAU 1914012429
Classification (IPC)—

Timeline

Timeline From IP Australia dates

1915191819211924192719301933Application filedMarch 11, 1914Term ended byMarch 11, 1935

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.