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Expired European patentEurope

Method of thermomagnetic recording of information and optical read-out of the stored information, and also a recording element suitable for use in this method

EP 0376375 B1 · Applicant: Philips Electronics N.V.

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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 December 18, 1989 and granted March 15, 1995. A European patent lasts at most 20 years from filing, so its term ended December 18, 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 June 18, 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.
FiledDecember 18, 1989
PublishedJuly 4, 1990
GrantedMarch 15, 1995
Term endedDecember 18, 2009
Application numberEP 89203214
Classification (CPC)G11B11/10582

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedDec 18, 1989PublishedJuly 4, 1990Patent grantedMarch 15, 1995Term endedDec 18, 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

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