Expired Australian patentAustralia
Extraction process for reactive metal oxides
AU 2004249473 · Applicant: The University Of Leeds
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 June 11, 2004 and granted December 2, 2010. 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 June 11, 2025.
- Term extensions apply only to pharmaceutical patents, and it isn't classified as one.
- We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 11, 2004
GrantedDecember 2, 2010
Term ended byJune 11, 2025
Application numberAU 2004249473
Classification (IPC)C01G23/047 +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.