Expired European patentEurope
Sessions in a communication system
EP 1676414 B1 · Applicant: Nokia Corporation
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.
Why it's free to use
- Filed October 20, 2004 and granted November 22, 2017. A European patent lasts at most 20 years from filing, so its term ended October 20, 2024.
- 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 20, 2004
PublishedJuly 5, 2006
GrantedNovember 22, 2017
Term endedOctober 20, 2024
Application numberEP 04791724
Classification (CPC)H04L65/1104
Timeline
Timeline From EPO dates
Sources & verification
Official EPO records
Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.