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Expired Australian patentAustralia

Image signal encoding method image signal encoder image signal decoding method image signal decoder and image signal recording medium

AU 1994058655 · Applicant: Sony Corporation

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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 19, 1994 and granted August 7, 1997. An Australian standard patent lasts 20 years from its date of patent, which is at most a year after this filing, so its term ended by January 19, 2015.
  • A pharmaceutical extension adds at most five years, so even that would have ended by January 19, 2020.
  • 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 19, 1994
GrantedAugust 7, 1997
Term ended byJanuary 19, 2015
Application numberAU 1994058655
Classification (IPC)H04N5/783 +2 more

Timeline

Timeline From IP Australia dates

1995199820012004200720102013Application filedJan 19, 1994Patent grantedAug 7, 1997Term ended byJan 19, 2015

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.