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Expired Australian patentAustralia

Solid state load protection system having loss of phase sensing

AU 1982082664 · Applicant: Westinghouse Electric Corporation

AusPat record

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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 April 15, 1982 and granted June 16, 1987. 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 April 15, 2003.
  • A pharmaceutical extension adds at most five years, so even that would have ended by April 15, 2008.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 15, 1982
GrantedJune 16, 1987
Term ended byApril 15, 2003
Application numberAU 1982082664
Classification (IPC)H02H3/13

Timeline

Timeline From IP Australia dates

1983198619891992199519982001Application filedApril 15, 1982Patent grantedJune 16, 1987Term ended byApril 15, 2003

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.