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Expired European patentEurope

Laser diode element with excellent intermodulation distortion characteristic

EP 0753914 B1 · Applicant: NEC CORPORATION

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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 January 7, 1994 and granted September 6, 2000. A European patent lasts at most 20 years from filing, so its term ended January 7, 2014.
  • 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 July 7, 2019.
  • 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.
FiledJanuary 7, 1994
PublishedJanuary 15, 1997
GrantedSeptember 6, 2000
Term endedJanuary 7, 2014
Application numberEP 96115482
Classification (CPC)H01S5/12

Timeline

Timeline From EPO dates

1995199719992001200320052007200920112013Application filedJan 7, 1994PublishedJan 15, 1997Patent grantedSep 6, 2000Term endedJan 7, 2014

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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