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Expired European patentEurope

Data muting method and apparatus for radio communications systems

EP 0094420 B1 · Applicant: MOTOROLA, INC.

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Overview

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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 November 12, 1982 and granted July 27, 1988. A European patent lasts at most 20 years from filing, so its term ended November 12, 2002.
  • 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 May 12, 2008.
  • 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.
FiledNovember 12, 1982
PublishedNovember 23, 1983
GrantedJuly 27, 1988
Term endedNovember 12, 2002
Application numberEP 83900135
Classification (CPC)H03G3/34

Timeline

Timeline From EPO dates

1983198519871989199119931995199719992001Application filedNov 12, 1982PublishedNov 23, 1983Patent grantedJuly 27, 1988Term endedNov 12, 2002

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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