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Expired European patentEurope

Communication protocols, systems and methods

EP 1720291 B1 · Applicant: Zetera Corporation

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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 16, 2002 and granted June 15, 2016. A European patent lasts at most 20 years from filing, so its term ended December 16, 2022.
  • 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.
FiledDecember 16, 2002
PublishedNovember 8, 2006
GrantedJune 15, 2016
Term endedDecember 16, 2022
Application numberEP 06016115
Classification (CPC)H04L12/28 +2 more

Timeline

Timeline From EPO dates

2003200520072009201120132015201720192021Application filedDec 16, 2002PublishedNov 8, 2006Patent grantedJune 15, 2016Term endedDec 16, 2022

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.