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Australian application, no grantAustralia

Bubble tray provided with variable gas passages

AU 1963028362 · Applicant: Shell Internationale Research Maatschappu Nv

AusPat record

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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 March 14, 1963. Even if it was granted, its term would have ended by March 14, 1984.
  • A pharmaceutical extension adds at most five years, so even that would have ended by March 14, 1989.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledMarch 14, 1963
GrantedNo grant recorded
Term ended byMarch 14, 1984
Application numberAU 1963028362
Classification (IPC)B01D3/20 +1 more

Sources & verification

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.