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Expired European patentEurope

Process for lubricating magnetic disks, and to magnetic disks

EP 0226279 B1 · Applicant: MAGNETIC PERIPHERALS INC.

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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 30, 1986 and granted July 25, 1990. A European patent lasts at most 20 years from filing, so its term ended September 30, 2006.
  • 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 30, 2012.
  • 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 30, 1986
PublishedJune 24, 1987
GrantedJuly 25, 1990
Term endedSeptember 30, 2006
Application numberEP 86307491
Classification (CPC)G11B5/7257

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedSep 30, 1986PublishedJune 24, 1987Patent grantedJuly 25, 1990Term endedSep 30, 2006

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.