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Australian application, no grantAustraliaSolo inventor

Improvements in or relating to thermionic amplifiers

AU 1938000100

AusPat record

Overview

Drawings and full text

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 10, 1938. Even if it was granted, its term would have ended by January 10, 1959.
  • A pharmaceutical extension adds at most five years, so even that would have ended by January 10, 1964.
  • 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 10, 1938
GrantedNo grant recorded
Term ended byJanuary 10, 1959
Application numberAU 1938000100
Classification (IPC)—

Timeline

Timeline From IP Australia dates

1939194219451948195119541957Application filedJan 10, 1938Term ended byJan 10, 1959

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.