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Australian application, no grantAustralia

Improvements relating tothe manufacture of alternating electric current rectifiers ofthe selenium type

AU 1945018778 · Applicant: Mckenzie & Holland Australia Proprietary Limited

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 January 24, 1945. Even if it was granted, its term would have ended by January 24, 1966.
  • A pharmaceutical extension adds at most five years, so even that would have ended by January 24, 1971.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 24, 1945
GrantedNo grant recorded
Term ended byJanuary 24, 1966
Application numberAU 1945018778
Classification (IPC)—

Timeline

Timeline From IP Australia dates

1946194919521955195819611964Application filedJan 24, 1945Term ended byJan 24, 1966

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.