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Expired European patentEurope

Apparatus and method for controlling an operation of a plurality of communication layers

EP 1673923 B1 · Applicant: NTT DoCoMo, Inc.

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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 October 15, 2003 and granted May 13, 2009. A European patent lasts at most 20 years from filing, so its term ended October 15, 2023.
  • 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.
FiledOctober 15, 2003
PublishedJune 28, 2006
GrantedMay 13, 2009
Term endedOctober 15, 2023
Application numberEP 03757985
Classification (CPC)H04L65/80 +2 more

Timeline

Timeline From EPO dates

2004200620082010201220142016201820202022Application filedOct 15, 2003PublishedJune 28, 2006Patent grantedMay 13, 2009Term endedOct 15, 2023

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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