Expired Australian patentAustralia
Erosion device
AU 1979045995 · Applicant: Michelin And Cie Compagnie Generale Des Etablissements Michelin
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 10, 1979 and granted October 14, 1982. 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 10, 2000.
- A pharmaceutical extension adds at most five years, so even that would have ended by April 10, 2005.
- 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 10, 1979
GrantedOctober 14, 1982
Term ended byApril 10, 2000
Application numberAU 1979045995
Classification (IPC)C23F1/00 +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.