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EP 1158733 B1 · Applicant: NEC 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 May 24, 2001 and granted November 2, 2005. A European patent lasts at most 20 years from filing, so its term ended May 24, 2021.
  • Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
  • 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.
FiledMay 24, 2001
PublishedNovember 28, 2001
GrantedNovember 2, 2005
Term endedMay 24, 2021
Application numberEP 01250184
Classification (CPC)H04L49/552 +2 more

Timeline

Timeline From EPO dates

2002200420062008201020122014201620182020Application filedMay 24, 2001PublishedNov 28, 2001Patent grantedNov 2, 2005Term endedMay 24, 2021

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.