Expired Australian patentAustralia
Thermostabilized copolymer composition
AU 1988015189 · Applicant: Shell Internationale Research Maatschappij Bv
Overview
Drawings and full text
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 April 27, 1988 and granted November 13, 1990. 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 April 27, 2009.
- A pharmaceutical extension adds at most five years, so even that would have ended by April 27, 2014.
- We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 27, 1988
GrantedNovember 13, 1990
Term ended byApril 27, 2009
Application numberAU 1988015189
Classification (IPC)C08L73/00 +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.