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Expired Australian patentAustralia

Apparatus for conditioning gas particularly refrigerant

AU 1991078514 · Applicant: Environmental Products Amalgamated 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 April 30, 1991 and granted January 22, 1996. 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 30, 2012.
  • A pharmaceutical extension adds at most five years, so even that would have ended by April 30, 2017.
  • 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 30, 1991
GrantedJanuary 22, 1996
Term ended byApril 30, 2012
Application numberAU 1991078514
Classification (IPC)F25B43/02

Timeline

Timeline From IP Australia dates

1992199519982001200420072010Application filedApril 30, 1991Patent grantedJan 22, 1996Term ended byApril 30, 2012

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.