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Expired European patentEurope

Nonreciprocal circuit device and communication apparatus incorporating same

EP 1087459 B1 · Applicant: Murata Manufacturing Co., Ltd.

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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 September 21, 2000 and granted December 1, 2004. A European patent lasts at most 20 years from filing, so its term ended September 21, 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 March 21, 2026.
  • 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.
FiledSeptember 21, 2000
PublishedMarch 28, 2001
GrantedDecember 1, 2004
Term endedSeptember 21, 2020
Application numberEP 00120669
Classification (CPC)H01P1/387

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedSep 21, 2000PublishedMarch 28, 2001Patent grantedDec 1, 2004Term endedSep 21, 2020

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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