Expired European patentEurope
High recording density magnetic recording medium having an undercoat layer
EP 0682802 B1 · Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY
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 February 7, 1994 and granted August 21, 1996. A European patent lasts at most 20 years from filing, so its term ended February 7, 2014.
- 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 August 7, 2019.
- 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.
FiledFebruary 7, 1994
PublishedNovember 22, 1995
GrantedAugust 21, 1996
Term endedFebruary 7, 2014
Application numberEP 94907427
Classification (CPC)G11B5/733
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.