Australian application, no grantAustralia
Process for the removal of NO and SO from gas streams using a water-soluble polymeric chelate of a polyvalent metal and membrane separation means
AU 1990054782 · Applicant: The Dow Chemical Company
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 May 7, 1990. Even if it was granted, its term would have ended by May 7, 2011.
- A pharmaceutical extension adds at most five years, so even that would have ended by May 7, 2016.
- We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMay 7, 1990
GrantedNo grant recorded
Term ended byMay 7, 2011
Application numberAU 1990054782
Classification (IPC)B01D53/14 +2 more
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.