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Expired European patentEurope

Apparatuses and method for generating and transmitting an anonymous routing identifier to maintain privacy of a SIP user agent's identity

EP 1853029 B1 · Applicant: Research In Motion Limited

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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 May 2, 2006 and granted July 22, 2009. A European patent lasts at most 20 years from filing, so its term ended May 2, 2026.
  • 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 2, 2006
PublishedNovember 7, 2007
GrantedJuly 22, 2009
Term endedMay 2, 2026
Application numberEP 06252330
Classification (CPC)H04L61/30 +2 more

Timeline

Timeline From EPO dates

2007200920112013201520172019202120232025Application filedMay 2, 2006PublishedNov 7, 2007Patent grantedJuly 22, 2009Term endedMay 2, 2026

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

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