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Expired European patentEurope

Optical gate and optical phase modulator

EP 1170627 B1 · Applicant: KDD Submarine Cable Systems Inc.

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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 June 25, 2001 and granted May 30, 2012. A European patent lasts at most 20 years from filing, so its term ended June 25, 2021.
  • Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
  • 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.
FiledJune 25, 2001
PublishedJanuary 9, 2002
GrantedMay 30, 2012
Term endedJune 25, 2021
Application numberEP 01115311
Classification (CPC)B82Y20/00 +1 more

Timeline

Timeline From EPO dates

2002200420062008201020122014201620182020Application filedJune 25, 2001PublishedJan 9, 2002Patent grantedMay 30, 2012Term endedJune 25, 2021

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

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

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