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Expired European patentEurope

System for intercepting file accesses and for automatic decryption and re-encryption of file data on a per-use basis

EP 1066554 B1 · Applicant: SYMANTEC 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 March 8, 1999 and granted October 15, 2003. A European patent lasts at most 20 years from filing, so its term ended March 8, 2019.
  • 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 8, 2024.
  • 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 8, 1999
PublishedJanuary 10, 2001
GrantedOctober 15, 2003
Term endedMarch 8, 2019
Application numberEP 99914891
Classification (CPC)G06F21/602

Timeline

Timeline From EPO dates

2000200220042006200820102012201420162018Application filedMarch 8, 1999PublishedJan 10, 2001Patent grantedOct 15, 2003Term endedMarch 8, 2019

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.