Patent Yard Sign in
Australian application, no grantAustralia

Improvements in or relating to thermionic valves ofthe beam type

AU 1938003767 · Applicant: Themo Valve Com Paw Limited

AusPat record

Overview

Drawings and full text

Its specification, documents and status are on IP Australia's AusPat.

Open the AusPat record

Read the whole patent

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 September 1, 1938. Even if it was granted, its term would have ended by September 1, 1959.
  • A pharmaceutical extension adds at most five years, so even that would have ended by September 1, 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.
FiledSeptember 1, 1938
GrantedNo grant recorded
Term ended bySeptember 1, 1959
Application numberAU 1938003767
Classification (IPC)H01J1/36 +2 more

Timeline

Timeline From IP Australia dates

1939194219451948195119541957Application filedSep 1, 1938Term ended bySep 1, 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.