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Expired European patentEurope

Method and apparatus for protocol conversion

EP 1172985 B1 · Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA

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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 17, 2000 and granted December 8, 2004. A European patent lasts at most 20 years from filing, so its term ended February 17, 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 August 17, 2025.
  • 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 17, 2000
PublishedJanuary 16, 2002
GrantedDecember 8, 2004
Term endedFebruary 17, 2020
Application numberEP 00904000
Classification (CPC)H04N1/00281 +2 more

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedFeb 17, 2000PublishedJan 16, 2002Patent grantedDec 8, 2004Term endedFeb 17, 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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