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Expired European patentEurope

Method and apparatus for echo estimation and suppression

EP 1012996 B1 · Applicant: TELEFONAKTIEBOLAGET LM ERICSSON

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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 August 10, 1998 and granted October 5, 2011. A European patent lasts at most 20 years from filing, so its term ended August 10, 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 February 10, 2024.
  • 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.
FiledAugust 10, 1998
PublishedJune 28, 2000
GrantedOctober 5, 2011
Term endedAugust 10, 2018
Application numberEP 98936787
Classification (CPC)H04B3/20

Timeline

Timeline From EPO dates

1999200120032005200720092011201320152017Application filedAug 10, 1998PublishedJune 28, 2000Patent grantedOct 5, 2011Term endedAug 10, 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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