Australian application, no grantAustralia
Device and method for controlling the circulation of finely divided material ina system consisting ofa riser anda downcomer
AU 1953021173 · Applicant: N V De Bataafsche Petroleum Maatschappij
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 September 4, 1953. Even if it was granted, its term would have ended by September 4, 1974.
- A pharmaceutical extension adds at most five years, so even that would have ended by September 4, 1979.
- We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledSeptember 4, 1953
GrantedNo grant recorded
Term ended bySeptember 4, 1974
Application numberAU 1953021173
Classification (IPC)B65G69/06 +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.