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European application, no grantEurope

Acoustic coupler for data transmission

EP 0180684 A2 · Applicant: Coscom Datentechnik GmbH & Co. Computer KG

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

Read the whole patent

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.

Google PatentsEPO PDF

Why it's free to use

  • Filed December 27, 1984 and never granted as a European patent. Had it been granted, its 20-year term would have ended December 27, 2004.
  • 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 June 27, 2010.
  • 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.
FiledDecember 27, 1984
PublishedMay 14, 1986
GrantedNever granted
Term endedDecember 27, 2004
Application numberEP 84730153
Classification (CPC)H04M1/2155

Timeline

Timeline From EPO dates

1985198719891991199319951997199920012003Application filedDec 27, 1984PublishedMay 14, 1986Term endedDec 27, 2004

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.