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Australian application, no grantAustralia

Improvements in and relating tothe anodic treatment of aluminium and its alloys

AU 1935021533 · Applicant: Sydney Howland Sheppard

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 February 26, 1935. Even if it was granted, its term would have ended by February 26, 1956.
  • A pharmaceutical extension adds at most five years, so even that would have ended by February 26, 1961.
  • 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 26, 1935
GrantedNo grant recorded
Term ended byFebruary 26, 1956
Application numberAU 1935021533
Classification (IPC)C25D11/06

Timeline

Timeline From IP Australia dates

1936193919421945194819511954Application filedFeb 26, 1935Term ended byFeb 26, 1956

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.