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Digital signal coding methods and apparatus, signal recording media, and signal transmission methods

EP 0888015 A2 · Applicant: SONY CORPORATION

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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 June 17, 1998 and never granted as a European patent. Had it been granted, its 20-year term would have ended June 17, 2018.
  • 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 December 17, 2023.
  • 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.
FiledJune 17, 1998
PublishedDecember 30, 1998
GrantedNever granted
Term endedJune 17, 2018
Application numberEP 98304762
Classification (CPC)H04N19/61 +2 more

Timeline

Timeline From EPO dates

1999200120032005200720092011201320152017Application filedJune 17, 1998PublishedDec 30, 1998Term endedJune 17, 2018

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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