Patent Yard Sign in
Expired Australian patentAustralia

Heterocyclic alkoxyamines as regulators in controlled radical polymerization processes

AU 1999053617 · Applicant: Ciba Specialty Chemicals Holding Inc

AusPat record

Overview

Drawings and full text

Its specification, documents and status are on IP Australia's AusPat.

Open the AusPat record

Read the whole patent

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 12, 1999 and granted April 29, 2004. 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 October 12, 2020.
  • A pharmaceutical extension adds at most five years, so even that would have ended by October 12, 2025.
  • 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 12, 1999
GrantedApril 29, 2004
Term ended byOctober 12, 2020
Application numberAU 1999053617
Classification (IPC)C07D235/02 +2 more

Timeline

Timeline From IP Australia dates

2000200320062009201220152018Application filedOct 12, 1999Patent grantedApril 29, 2004Term ended byOct 12, 2020

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.