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Expired European patentEurope

Thin film tape head assembly

EP 0515786 B1 · Applicant: READ-RITE CORPORATION

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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.

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Why it's free to use

  • Filed March 18, 1992 and granted June 11, 1997. A European patent lasts at most 20 years from filing, so its term ended March 18, 2012.
  • 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 September 18, 2017.
  • 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.
FiledMarch 18, 1992
PublishedDecember 2, 1992
GrantedJune 11, 1997
Term endedMarch 18, 2012
Application numberEP 92104671
Classification (CPC)G11B5/3103

Timeline

Timeline From EPO dates

1993199519971999200120032005200720092011Application filedMarch 18, 1992PublishedDec 2, 1992Patent grantedJune 11, 1997Term endedMarch 18, 2012

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.