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Expired Australian patentAustralia

Controlled release compositions for administration of therapeutic agents to ruminants

AU 1981073728 · Applicant: Commonwealth Scientific And Industrial Research Organisation

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, 1981 and granted April 15, 1987. 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, 2002.
  • A pharmaceutical extension adds at most five years, so even that would have ended by July 2, 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.
FiledJuly 2, 1981
GrantedApril 15, 1987
Term ended byJuly 2, 2002
Application numberAU 1981073728
Classification (IPC)A61K9/22 +2 more

Timeline

Timeline From IP Australia dates

1982198519881991199419972000Application filedJuly 2, 1981Patent grantedApril 15, 1987Term ended byJuly 2, 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.