Australian application, no grantAustralia
Improvements in or relating tothe urea separation of mixtures of organic compounds
AU 1954026547 · Applicant: Shell Refining And Marketing Company Limited
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 April 13, 1954. Even if it was granted, its term would have ended by April 13, 1975.
- A pharmaceutical extension adds at most five years, so even that would have ended by April 13, 1980.
- We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 13, 1954
GrantedNo grant recorded
Term ended byApril 13, 1975
Application numberAU 1954026547
Classification (IPC)C10G73/24 +1 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.