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Australian application, no grantAustralia

Improvements in electric discharge devices

AU 1931005427 · Applicant: Standard Telephones And Cables Australasia Limited

AusPat record

Overview

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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 December 17, 1931. Even if it was granted, its term would have ended by December 17, 1952.
  • A pharmaceutical extension adds at most five years, so even that would have ended by December 17, 1957.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 17, 1931
GrantedNo grant recorded
Term ended byDecember 17, 1952
Application numberAU 1931005427
Classification (IPC)H01J19/44

Timeline

Timeline From IP Australia dates

1932193519381941194419471950Application filedDec 17, 1931Term ended byDec 17, 1952

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.