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Australian application, no grantAustralia

Improvements in or relating to process and apparatus forthe purification of coke oven gas

AU 1975079034 · Applicant: Heinz Holter

AusPat record

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 March 13, 1975. Even if it was granted, its term would have ended by March 13, 1996.
  • A pharmaceutical extension adds at most five years, so even that would have ended by March 13, 2001.
  • 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 13, 1975
GrantedNo grant recorded
Term ended byMarch 13, 1996
Application numberAU 1975079034
Classification (IPC)B01D53/52 +2 more

Timeline

Timeline From IP Australia dates

1976197919821985198819911994Application filedMarch 13, 1975Term ended byMarch 13, 1996

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.