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Australian application, no grantAustralia

Improvements in or relating to method of and apparatus for making foamed polymeric structural materials

AU 1958044637 · Applicant: Koppers Company Inc

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 December 30, 1958. Even if it was granted, its term would have ended by December 30, 1979.
  • A pharmaceutical extension adds at most five years, so even that would have ended by December 30, 1984.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledDecember 30, 1958
GrantedNo grant recorded
Term ended byDecember 30, 1979
Application numberAU 1958044637
Classification (IPC)—

Timeline

Timeline From IP Australia dates

1959196219651968197119741977Application filedDec 30, 1958Term ended byDec 30, 1979

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.