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Expired Australian patentAustralia

Electric heaters

AU 1981069536 · Applicant: United Gas Industries Limited

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 April 14, 1981. An Australian petty patent lasted at most 6 years from its date of patent, at most a year after this filing, so it ended by April 14, 1988.
  • We check Australian rights only. A patent in its family in another country could still be in force.
FiledApril 14, 1981
GrantedNovember 26, 1981
Term ended byApril 14, 1988
Application numberAU 1981069536
Classification (IPC)F24C7/08 +1 more

Timeline

Timeline From IP Australia dates

1982198319841985198619871988Application filedApril 14, 1981Patent grantedNov 26, 1981Term ended byApril 14, 1988

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.