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Expired Australian patentAustralia

Thermistor element

AU 1979045173 · Applicant: Nv Philips Gloeilampenfabrieken

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 March 15, 1979 and granted April 30, 1981. An Australian standard patent lasts 20 years from its date of patent, which is at most a year after this filing, so its term ended by March 15, 2000.
  • A pharmaceutical extension adds at most five years, so even that would have ended by March 15, 2005.
  • 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 15, 1979
GrantedApril 30, 1981
Term ended byMarch 15, 2000
Application numberAU 1979045173
Classification (IPC)H01C7/02 +2 more

Timeline

Timeline From IP Australia dates

1980198319861989199219951998Application filedMarch 15, 1979Patent grantedApril 30, 1981Term ended byMarch 15, 2000

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.