Expired Australian patentAustralia
Intermediates useful in preparing piperidin-4-spiro-oxiranes
AU 1995020185 · Applicant: The Secretary Of State For Defence In Her Britannic Majestys Government Of The United Kingdom Of Great Britain And Northern Ireland
Overview
Drawings and full text
Its specification, documents and status are on IP Australia's AusPat.
Open the AusPat recordRead 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 May 22, 1995 and granted March 25, 1997. 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 May 22, 2016.
- A pharmaceutical extension adds at most five years, so even that would have ended by May 22, 2021.
- We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 22, 1995
GrantedMarch 25, 1997
Term ended byMay 22, 2016
Application numberAU 1995020185
Classification (IPC)C07D493/10 +2 more
Timeline
Timeline From IP Australia dates
Sources & verification
Official IP Australia records
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.