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Expired European patentEurope

Fabrication of diffraction gratings for optical signal devices and optical signal devices containing the same

EP 1060417 B1 · Applicant: CORNING INCORPORATED

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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.

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Why it's free to use

  • Filed February 19, 1999 and granted October 18, 2006. A European patent lasts at most 20 years from filing, so its term ended February 19, 2019.
  • 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 19, 2024.
  • 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 19, 1999
PublishedDecember 20, 2000
GrantedOctober 18, 2006
Term endedFebruary 19, 2019
Application numberEP 99907146
Classification (CPC)G02B6/124

Timeline

Timeline From EPO dates

2000200220042006200820102012201420162018Application filedFeb 19, 1999PublishedDec 20, 2000Patent grantedOct 18, 2006Term endedFeb 19, 2019

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

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