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Australian application, no grantAustralia

Improvements in or relating to electrode supporting means in electron discharge tubes

AU 1939001851 · 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 April 27, 1939. Even if it was granted, its term would have ended by April 27, 1960.
  • A pharmaceutical extension adds at most five years, so even that would have ended by April 27, 1965.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 27, 1939
GrantedNo grant recorded
Term ended byApril 27, 1960
Application numberAU 1939001851
Classification (IPC)H01J1/96

Timeline

Timeline From IP Australia dates

1940194319461949195219551958Application filedApril 27, 1939Term ended byApril 27, 1960

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.