Expired European patentEurope
Method and device for the determination and display of the spent playing time or length of tape and/or the remaining running time of cassettes or reels for tape record carriers
EP 0063646 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
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.
Why it's free to use
- Filed December 16, 1981 and granted September 24, 1986. A European patent lasts at most 20 years from filing, so its term ended December 16, 2001.
- 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 16, 2007.
- 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 16, 1981
PublishedNovember 3, 1982
GrantedSeptember 24, 1986
Term endedDecember 16, 2001
Application numberEP 81110485
Classification (CPC)G11B27/34 +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.