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Expired Australian patentAustralia

Colour video playback chrominance cross-talk reduction

AU 1979047007 · Applicant: Nv Philips Gloeilampenfabrieken

AusPat record

Overview

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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 May 11, 1979 and granted August 18, 1983. 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 May 11, 2000.
  • A pharmaceutical extension adds at most five years, so even that would have ended by May 11, 2005.
  • 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 11, 1979
GrantedAugust 18, 1983
Term ended byMay 11, 2000
Application numberAU 1979047007
Classification (IPC)G11B20/02 +1 more

Timeline

Timeline From IP Australia dates

1980198319861989199219951998Application filedMay 11, 1979Patent grantedAug 18, 1983Term ended byMay 11, 2000

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.