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Australian application, no grantAustralia

Improvements in or relating to artificially cooled mercury vapour discharge tubes

AU 1935021806 · Applicant: X Y Philips Gloeilampenfabrieken

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 16, 1936. Even if it was granted, its term would have ended by March 16, 1957.
  • A pharmaceutical extension adds at most five years, so even that would have ended by March 16, 1962.
  • 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 16, 1936
GrantedNo grant recorded
Term ended byMarch 16, 1957
Application numberAU 1935021806
Classification (IPC)H01J61/52 +2 more

Timeline

Timeline From IP Australia dates

1937194019431946194919521955Application filedMarch 16, 1936Term ended byMarch 16, 1957

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.