Australian application, no grantAustralia
Improved method of producing pig iron and ferro-alloys in shaft furnaces
AU 1948018431 · Applicant: Gesellschaft Der Ludw Von Rollschen Eisenwerke A G
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 February 13, 1948. Even if it was granted, its term would have ended by February 13, 1969.
- A pharmaceutical extension adds at most five years, so even that would have ended by February 13, 1974.
- We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 13, 1948
GrantedNo grant recorded
Term ended byFebruary 13, 1969
Application numberAU 1948018431
Classification (IPC)C21B11/02
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.