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Expired Australian patentAustralia

Improvements in swimming pool construction

AU 1983014052 · Applicant: Liquid Retaining Structures Aust Pty Ltd

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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 September 29, 1983. 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 September 29, 1990.
  • We check Australian rights only. A patent in its family in another country could still be in force.
FiledSeptember 29, 1983
GrantedSeptember 29, 1983
Term ended bySeptember 29, 1990
Application numberAU 1983014052
Classification (IPC)E04H4/00

Timeline

Timeline From IP Australia dates

1984198519861987198819891990Application filedSep 29, 1983Patent grantedSep 29, 1983Term ended bySep 29, 1990

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.