Expired Australian patentAustralia
Process for preparing a heat treatment atmosphere and method for regulating said process
AU 1997016333 · 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 March 17, 1997 and granted September 7, 2000. 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 March 17, 2018.
- A pharmaceutical extension adds at most five years, so even that would have ended by March 17, 2023.
- We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 17, 1997
GrantedSeptember 7, 2000
Term ended byMarch 17, 2018
Application numberAU 1997016333
Classification (IPC)C21D1/76 +1 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.