Expired European patentEurope
Method and communication system for associated phone calling
EP 1585355 B1 · Applicant: Shenzhen Dianjing Technology Co Ltd
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 December 17, 2004 and granted August 29, 2007. A European patent lasts at most 20 years from filing, so its term ended December 17, 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.
FiledDecember 17, 2004
PublishedOctober 12, 2005
GrantedAugust 29, 2007
Term endedDecember 17, 2024
Application numberEP 04257923
Classification (CPC)H04W4/16
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.