Expired European patentEurope
Call control with converged application server logic and gateway logic in IMS networks
EP 1662702 B1 · Applicant: LUCENT TECHNOLOGIES INC.
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.
Why it's free to use
- Filed November 15, 2005 and granted June 20, 2007. A European patent lasts at most 20 years from filing, so its term ended November 15, 2025.
- 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.
FiledNovember 15, 2005
PublishedMay 31, 2006
GrantedJune 20, 2007
Term endedNovember 15, 2025
Application numberEP 05257054
Classification (CPC)H04M15/00 +2 more
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.