Expired European patentEurope
Television signal retransmission equipment with combined amplification of vision and sound signals and automatic control of the picture/sound ratio
EP 0081413 B1 · Applicant: THOMSON-LGT LABORATOIRE GENERAL DES TELECOMMUNICATIONS
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.
Why it's free to use
- Filed November 26, 1982 and granted February 5, 1986. A European patent lasts at most 20 years from filing, so its term ended November 26, 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 26, 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 26, 1982
PublishedJune 15, 1983
GrantedFebruary 5, 1986
Term endedNovember 26, 2002
Application numberEP 82402160
Classification (CPC)H04N5/38
Timeline
Timeline From EPO dates
Sources & verification
Official EPO records
Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.