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Australian application, no grantAustralia

Improvements in or relating to electrical control circuits for thermionic rectifiers

AU 1932010204 · Applicant: Marconis Wireless Telegraph Company 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 November 18, 1932. Even if it was granted, its term would have ended by November 18, 1953.
  • A pharmaceutical extension adds at most five years, so even that would have ended by November 18, 1958.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 18, 1932
GrantedNo grant recorded
Term ended byNovember 18, 1953
Application numberAU 1932010204
Classification (IPC)—

Timeline

Timeline From IP Australia dates

1933193619391942194519481951Application filedNov 18, 1932Term ended byNov 18, 1953

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.