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Expired Australian patentAustralia

Seat cushioning

AU 1981066921 · Applicant: Wilkhahn Wilkening & Hahne Gmbh & Co

AusPat record

Overview

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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 February 5, 1981 and granted October 10, 1985. 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 February 5, 2002.
  • A pharmaceutical extension adds at most five years, so even that would have ended by February 5, 2007.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 5, 1981
GrantedOctober 10, 1985
Term ended byFebruary 5, 2002
Application numberAU 1981066921
Classification (IPC)A47C31/02 +2 more

Timeline

Timeline From IP Australia dates

1982198519881991199419972000Application filedFeb 5, 1981Patent grantedOct 10, 1985Term ended byFeb 5, 2002

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.