Expired European patentEurope
Method for the magnetic recording and reproduction of telecommunication signals, particularly of teletext and/or cable text signals
EP 0182970 B1 · Applicant: GRUNDIG E.M.V. Elektro-Mechanische Versuchsanstalt Max Grundig holländ. Stiftung & Co. KG.
Overview
The published document from the EPO: abstract, claims, description and drawings. Open it full size
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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 July 19, 1985 and granted January 24, 1990. A European patent lasts at most 20 years from filing, so its term ended July 19, 2005.
- 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 January 19, 2011.
- 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.
FiledJuly 19, 1985
PublishedJune 4, 1986
GrantedJanuary 24, 1990
Term endedJuly 19, 2005
Application numberEP 85109034
Classification (CPC)G11B20/1496 +1 more
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.