Australian application, no grantAustralia
Improved process forthe manufacture of sulphuric anhydride or sulphuric acid and of pure sulphurous acid from impure gases containing thesame sulphurous acid
AU 1908011710 · Applicant: And
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 June 12, 1908. Even if it was granted, its term would have ended by June 12, 1929.
- A pharmaceutical extension adds at most five years, so even that would have ended by June 12, 1934.
- We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 12, 1908
GrantedNo grant recorded
Term ended byJune 12, 1929
Application numberAU 1908011710
Classification (IPC)—
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.