Expired European patentEurope
Optical transmission line, negative dispersion optical fiber used for the optical transmission line, and optical transmission system comprising optical transmission line
EP 1083446 B1 · Applicant: The Furukawa Electric Co., Ltd.
Overview
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Listed from its EPO record in Patent Yard's archive of European patents past their term. Its claims, description and drawings are in the EPO PDF and on Google Patents, and the Claude kit works from them.
Why it's free to use
- Filed February 22, 2000 and granted September 23, 2009. A European patent lasts at most 20 years from filing, so its term ended February 22, 2020.
- A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by August 22, 2025.
- We check European rights only. A US or other national patent in its family could still be in force: check its family on Espacenet or Google Patents.
FiledFebruary 22, 2000
PublishedMarch 14, 2001
GrantedSeptember 23, 2009
Term endedFebruary 22, 2020
Application numberEP 00904096
Classification (CPC)G02B6/02028 +2 more
Timeline
Timeline From EPO dates
Sources & verification
Official EPO records
Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.