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Australian application, no grantAustraliaSolo inventor

Electrical circuits for producing currents of desired waveform

AU 1938001196

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 March 24, 1938. Even if it was granted, its term would have ended by March 24, 1959.
  • A pharmaceutical extension adds at most five years, so even that would have ended by March 24, 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.
FiledMarch 24, 1938
GrantedNo grant recorded
Term ended byMarch 24, 1959
Application numberAU 1938001196
Classification (IPC)—

Timeline

Timeline From IP Australia dates

1939194219451948195119541957Application filedMarch 24, 1938Term ended byMarch 24, 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.