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Expired Australian patentAustralia

Process and machine for manufacturing a multi-layer thermal insulation around and along a solid passage and corresponding cryogenic reservoir

AU 1986056412 · Applicant: Lair Liquide Societe Anonyme Pour Letude Et Lexploitation Des Procedes Georges Claude

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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 21, 1986 and granted July 14, 1989. 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 21, 2007.
  • A pharmaceutical extension adds at most five years, so even that would have ended by April 21, 2012.
  • 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 21, 1986
GrantedJuly 14, 1989
Term ended byApril 21, 2007
Application numberAU 1986056412
Classification (IPC)F25D3/10 +2 more

Timeline

Timeline From IP Australia dates

1987199019931996199920022005Application filedApril 21, 1986Patent grantedJuly 14, 1989Term ended byApril 21, 2007

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.