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Expired European patentEurope

Acoustic signal encoding device, and acoustic signal decoding device

EP 1865497 B1 · Applicant: MATSUSHITA ELECTRIC INDUSTRIAL 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 October 13, 2005 and granted March 28, 2012. A European patent lasts at most 20 years from filing, so its term ended October 13, 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.
FiledOctober 13, 2005
PublishedDecember 12, 2007
GrantedMarch 28, 2012
Term endedOctober 13, 2025
Application numberEP 05793725
Classification (CPC)H04S3/006 +1 more

Timeline

Timeline From EPO dates

2006200820102012201420162018202020222024Application filedOct 13, 2005PublishedDec 12, 2007Patent grantedMarch 28, 2012Term endedOct 13, 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

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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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