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Australian application, no grantAustralia

Improvements in or relating to the production of polymethyl methacrylate sheet materials and shaped articles therefrom

AU 1954024522 · Applicant: Imperial Chemical In Parallel Sheets Of Metal Glass Or Other Suit Dumfries Limited Carrying On Busi Able Material Separated Bya Flexible Gasket Ness As Manufacturers And Merchants Atim Arranged About Their Periphery And Subjectperial Che

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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 January 20, 1954. Even if it was granted, its term would have ended by January 20, 1975.
  • A pharmaceutical extension adds at most five years, so even that would have ended by January 20, 1980.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJanuary 20, 1954
GrantedNo grant recorded
Term ended byJanuary 20, 1975
Application numberAU 1954024522
Classification (IPC)—

Timeline

Timeline From IP Australia dates

1955195819611964196719701973Application filedJan 20, 1954Term ended byJan 20, 1975

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.