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Expired European patentEurope

Audio waveform processing device, method, and program

EP 1840871 B1 · Applicant: P Softhouse 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 December 26, 2005 and granted July 12, 2017. A European patent lasts at most 20 years from filing, so its term ended December 26, 2025.
  • 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.
FiledDecember 26, 2005
PublishedOctober 3, 2007
GrantedJuly 12, 2017
Term endedDecember 26, 2025
Application numberEP 05842258
Classification (CPC)G10L21/04

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedDec 26, 2005PublishedOct 3, 2007Patent grantedJuly 12, 2017Term endedDec 26, 2025

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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