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Australian application, no grantAustralia

Improvements in or relating to electron discharge devices ofthe electron multiplier type

AU 1937000349 · 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 January 27, 1937. Even if it was granted, its term would have ended by January 27, 1958.
  • A pharmaceutical extension adds at most five years, so even that would have ended by January 27, 1963.
  • 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 27, 1937
GrantedNo grant recorded
Term ended byJanuary 27, 1958
Application numberAU 1937000349
Classification (IPC)H01J43/06

Timeline

Timeline From IP Australia dates

1938194119441947195019531956Application filedJan 27, 1937Term ended byJan 27, 1958

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.