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Expired European patentEurope

Magnetic recording medium

EP 0360175 B1 · Applicant: KONICA CORPORATION

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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.

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Why it's free to use

  • Filed September 16, 1989 and granted July 30, 1997. A European patent lasts at most 20 years from filing, so its term ended September 16, 2009.
  • 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 March 16, 2015.
  • 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.
FiledSeptember 16, 1989
PublishedMarch 28, 1990
GrantedJuly 30, 1997
Term endedSeptember 16, 2009
Application numberEP 89117162
Classification (CPC)G11B5/702 +1 more

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedSep 16, 1989PublishedMarch 28, 1990Patent grantedJuly 30, 1997Term endedSep 16, 2009

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.