Expired European patentEurope
Method to check communication link reliability
EP 1504556 B1 · Applicant: Qualcomm, Incorporated
Overview
The published document from the EPO: abstract, claims, description and drawings. Open it full size
Read the whole patent
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 May 13, 2003 and granted November 25, 2009. A European patent lasts at most 20 years from filing, so its term ended May 13, 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.
FiledMay 13, 2003
PublishedFebruary 9, 2005
GrantedNovember 25, 2009
Term endedMay 13, 2023
Application numberEP 03726865
Classification (CPC)H04L1/24 +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.