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Expired European patentEurope

Method and apparatus for changing the timbre and/or pitch of audio signals

EP 0750776 B1 · Applicant: IVL TECHNOLOGIES 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 January 18, 1996 and granted September 5, 2001. A European patent lasts at most 20 years from filing, so its term ended January 18, 2016.
  • 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 18, 2021.
  • 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 18, 1996
PublishedJanuary 2, 1997
GrantedSeptember 5, 2001
Term endedJanuary 18, 2016
Application numberEP 96900481
Classification (CPC)G10H7/08 +2 more

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedJan 18, 1996PublishedJan 2, 1997Patent grantedSep 5, 2001Term endedJan 18, 2016

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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