Australian application, no grantAustralia
Improvements inthe manufacture and production of phosphoric acid and hydrogen
AU 1929022881 · Applicant: Ig Farren Industrie Aktiengesellschaft
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 October 7, 1929. Even if it was granted, its term would have ended by October 7, 1950.
- A pharmaceutical extension adds at most five years, so even that would have ended by October 7, 1955.
- We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledOctober 7, 1929
GrantedNo grant recorded
Term ended byOctober 7, 1950
Application numberAU 1929022881
Classification (IPC)C01B25/20
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.