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Expired Australian patentAustralia

Optical fiber drawing method and drawing device

AU 2000057075 · Applicant: Sumitomo Electric Industries 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 June 30, 2000 and granted August 12, 2004. 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 June 30, 2021.
  • A pharmaceutical extension adds at most five years, so even that would have ended by June 30, 2026.
  • We check Australian rights only. A patent in its family in another country could still be in force: check its family on Google Patents.
FiledJune 30, 2000
GrantedAugust 12, 2004
Term ended byJune 30, 2021
Application numberAU 2000057075
Classification (IPC)C03B37/027 +2 more

Timeline

Timeline From IP Australia dates

2001200420072010201320162019Application filedJune 30, 2000Patent grantedAug 12, 2004Term ended byJune 30, 2021

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.