Australian application, no grantAustralia
An improved method of preventing the formation of scale in steam boilers evaporators economisers andthe like
AU 1923015078 · Applicant: Present Invention Consists Ina Modi The Provision Ofa Separate Source Of Direct Fication Of Or Improvement Inthe Method Current Supply Ls Dispensed With Andthe Of Preventing The Formation Of Scale In Effect Ofthe Method Ls Achieved Without
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 November 7, 1923. Even if it was granted, its term would have ended by November 7, 1944.
- A pharmaceutical extension adds at most five years, so even that would have ended by November 7, 1949.
- We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledNovember 7, 1923
GrantedNo grant recorded
Term ended byNovember 7, 1944
Application numberAU 1923015078
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.