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Expired European patentEurope

Improvement to an electroacoustic communication device for use on protective headgear

EP 0873666 B1 · Applicant: GALLET S.A.

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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 9, 1997 and granted May 10, 2000. A European patent lasts at most 20 years from filing, so its term ended January 9, 2017.
  • 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 9, 2022.
  • 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 9, 1997
PublishedOctober 28, 1998
GrantedMay 10, 2000
Term endedJanuary 9, 2017
Application numberEP 97900622
Classification (CPC)H04R1/10 +2 more

Timeline

Timeline From EPO dates

1998200020022004200620082010201220142016Application filedJan 9, 1997PublishedOct 28, 1998Patent grantedMay 10, 2000Term endedJan 9, 2017

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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