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Australian application, no grantAustralia

Improvements inthe manufacture of dihalogen derivatives of paraffin hydrocarbons and of caoutchouc-like bodies therefrom

AU 1911001245 · Applicant: William Henry Perkin Phd Are Attached Arenot Separated From One F R S Professorof Organic Chemistry Of Another By Morethan Two Carbon Atoms

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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 22, 1911. Even if it was granted, its term would have ended by May 22, 1932.
  • A pharmaceutical extension adds at most five years, so even that would have ended by May 22, 1937.
  • 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 22, 1911
GrantedNo grant recorded
Term ended byMay 22, 1932
Application numberAU 1911001245
Classification (IPC)—

Timeline

Timeline From IP Australia dates

1912191519181921192419271930Application filedMay 22, 1911Term ended byMay 22, 1932

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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.