Expired Australian patentAustralia
Ilmenite beneficiation with feCl3
AU 1975080195 · Applicant: Ei Du Pont De Nemours And Company
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 April 16, 1975 and granted April 27, 1978. 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 16, 1996.
- A pharmaceutical extension adds at most five years, so even that would have ended by April 16, 2001.
- 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 16, 1975
GrantedApril 27, 1978
Term ended byApril 16, 1996
Application numberAU 1975080195
Classification (IPC)C22B34/12 +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.