Expired Australian patentAustralia
Concentration of fibrous material
AU 1981066803 · Applicant: T & N Materials Research Limited
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 January 30, 1981 and granted March 21, 1985. 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 January 30, 2002.
- A pharmaceutical extension adds at most five years, so even that would have ended by January 30, 2007.
- We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 30, 1981
GrantedMarch 21, 1985
Term ended byJanuary 30, 2002
Application numberAU 1981066803
Classification (IPC)B03B5/34 +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.