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Australian application, no grantAustralia

Preparing optically active intermediate forthe synthesis of chloramphenicol

AU 1953020738 · Applicant: Les Laboratoires Francais De Chimiotherapie

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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 August 18, 1953. Even if it was granted, its term would have ended by August 18, 1974.
  • A pharmaceutical extension adds at most five years, so even that would have ended by August 18, 1979.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledAugust 18, 1953
GrantedNo grant recorded
Term ended byAugust 18, 1974
Application numberAU 1953020738
Classification (IPC)C07C89/04 +1 more

Timeline

Timeline From IP Australia dates

1954195719601963196619691972Application filedAug 18, 1953Term ended byAug 18, 1974

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.