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Australian application, no grantAustralia

Piperidine derivatives and their use as stabilizers for synthetic polymers

AU 1973061704 · Applicant: Sankyo 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 October 23, 1973. Even if it was granted, its term would have ended by October 23, 1994.
  • A pharmaceutical extension adds at most five years, so even that would have ended by October 23, 1999.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 23, 1973
GrantedNo grant recorded
Term ended byOctober 23, 1994
Application numberAU 1973061704
Classification (IPC)H01C7/00 +2 more

Timeline

Timeline From IP Australia dates

1974197719801983198619891992Application filedOct 23, 1973Term ended byOct 23, 1994

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.