Expired Australian patentAustralia
Process and installation for the distillation of air
AU 1994078894 · Applicant: Lair Liquide Societe Anonyme Pour Letude Et Lexploitation Des Procedes Georges Claude
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 November 18, 1994 and granted October 14, 1996. 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 November 18, 2015.
- A pharmaceutical extension adds at most five years, so even that would have ended by November 18, 2020.
- We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 18, 1994
GrantedOctober 14, 1996
Term ended byNovember 18, 2015
Application numberAU 1994078894
Classification (IPC)B01D53/04 +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.