Australian application, no grantAustralia
Improvements in and relating to apparatus for effecting the biological purification of sewage and waste waters and in distributers for nitrifying the effluent and in bacteria beds
AU 1914014054 · Applicant: Hubert John Daws
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 July 31, 1914. Even if it was granted, its term would have ended by July 31, 1935.
- A pharmaceutical extension adds at most five years, so even that would have ended by July 31, 1940.
- We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJuly 31, 1914
GrantedNo grant recorded
Term ended byJuly 31, 1935
Application numberAU 1914014054
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.