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Expired Australian patentAustralia

A composite roll

AU 1990058521 · Applicant: The Broken Hill Proprietary Company Limited

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 July 2, 1990 and granted January 31, 1995. 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 July 2, 2011.
  • A pharmaceutical extension adds at most five years, so even that would have ended by July 2, 2016.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 2, 1990
GrantedJanuary 31, 1995
Term ended byJuly 2, 2011
Application numberAU 1990058521
Classification (IPC)C22C38/34 +2 more

Timeline

Timeline From IP Australia dates

1991199419972000200320062009Application filedJuly 2, 1990Patent grantedJan 31, 1995Term ended byJuly 2, 2011

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.