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Expired Australian patentAustralia

Heat exchanger and header pipe used therein

AU 1997010031 · Applicant: Man Zai Industrial Co Ltd

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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 January 3, 1997. 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 January 3, 2004.
  • We check Australian rights only. A patent in its family in another country could still be in force.
FiledJanuary 3, 1997
GrantedMay 29, 1997
Term ended byJanuary 3, 2004
Application numberAU 1997010031
Classification (IPC)F28F9/02

Timeline

Timeline From IP Australia dates

1998199920002001200220032004Application filedJan 3, 1997Patent grantedMay 29, 1997Term ended byJan 3, 2004

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.