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Expired Australian patentAustralia

Near-infrared absorbing film and multi-layered panel comprising the film

AU 1997025762 · Applicant: Osaka Gas Co Ltd

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 April 16, 1997 and granted August 3, 2000. 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 April 16, 2018.
  • A pharmaceutical extension adds at most five years, so even that would have ended by April 16, 2023.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledApril 16, 1997
GrantedAugust 3, 2000
Term ended byApril 16, 2018
Application numberAU 1997025762
Classification (IPC)B32B27/18 +2 more

Timeline

Timeline From IP Australia dates

1998200120042007201020132016Application filedApril 16, 1997Patent grantedAug 3, 2000Term ended byApril 16, 2018

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.