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Expired Australian patentAustralia

Process for producing copolymer latex and use thereof

AU 1993031717 · Applicant: Nippon A&L Inc

AusPat record

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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 December 21, 1992 and granted February 6, 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 December 21, 2013.
  • A pharmaceutical extension adds at most five years, so even that would have ended by December 21, 2018.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 21, 1992
GrantedFebruary 6, 1996
Term ended byDecember 21, 2013
Application numberAU 1993031717
Classification (IPC)D06M15/693 +2 more

Timeline

Timeline From IP Australia dates

1993199619992002200520082011Application filedDec 21, 1992Patent grantedFeb 6, 1996Term ended byDec 21, 2013

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.