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Expired European patentEurope

Optical waveform shaping device

EP 0555063 B1 · Applicant: KOKUSAI DENSHIN DENWA KABUSHIKI KAISHA

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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.

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Why it's free to use

  • Filed February 3, 1993 and granted April 14, 1999. A European patent lasts at most 20 years from filing, so its term ended February 3, 2013.
  • 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 3, 2018.
  • 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 3, 1993
PublishedAugust 11, 1993
GrantedApril 14, 1999
Term endedFebruary 3, 2013
Application numberEP 93300774
Classification (CPC)H04B10/299

Timeline

Timeline From EPO dates

1994199619982000200220042006200820102012Application filedFeb 3, 1993PublishedAug 11, 1993Patent grantedApril 14, 1999Term endedFeb 3, 2013

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.