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Expired European patentEurope

Method and device for transmitting digital telemetry signals in a digital data flow

EP 0346783 B1 · Applicant: Ascom Ericsson Transmission AG

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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 10, 1989 and granted December 15, 1993. A European patent lasts at most 20 years from filing, so its term ended June 10, 2009.
  • 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 10, 2014.
  • 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 10, 1989
PublishedDecember 20, 1989
GrantedDecember 15, 1993
Term endedJune 10, 2009
Application numberEP 89110538
Classification (CPC)H04L25/4912

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedJune 10, 1989PublishedDec 20, 1989Patent grantedDec 15, 1993Term endedJune 10, 2009

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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