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Expired European patentEurope

Three-dimensional auditory display apparatus and method utilising enhanced bionic emulation of human binaural sound localisation

EP 0276159 B1 · Applicant: American Natural Sound Development Company

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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 January 21, 1988 and granted June 29, 1994. A European patent lasts at most 20 years from filing, so its term ended January 21, 2008.
  • 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 July 21, 2013.
  • 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.
FiledJanuary 21, 1988
PublishedJuly 27, 1988
GrantedJune 29, 1994
Term endedJanuary 21, 2008
Application numberEP 88300501
Classification (CPC)H04S7/302 +1 more

Timeline

Timeline From EPO dates

1989199119931995199719992001200320052007Application filedJan 21, 1988PublishedJuly 27, 1988Patent grantedJune 29, 1994Term endedJan 21, 2008

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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