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Australian application, no grantAustralia

Improvements in retort ovens for low temperature carbonisation

AU 1929018157 · Applicant: Compagnie Generale De Distillation Et Cokefaction A Basse Temperature Et Miniere Intertrust Societe Anonyme

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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 February 1, 1929. Even if it was granted, its term would have ended by February 1, 1950.
  • A pharmaceutical extension adds at most five years, so even that would have ended by February 1, 1955.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledFebruary 1, 1929
GrantedNo grant recorded
Term ended byFebruary 1, 1950
Application numberAU 1929018157
Classification (IPC)F27B5/10 +1 more

Timeline

Timeline From IP Australia dates

1930193319361939194219451948Application filedFeb 1, 1929Term ended byFeb 1, 1950

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.