Expired European patentEurope
Method and apparatus for ingress filtering using security group information
EP 1817893 B1 · Applicant: Cisco Technology, Inc.
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 31, 2005 and granted May 8, 2013. A European patent lasts at most 20 years from filing, so its term ended October 31, 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.
FiledOctober 31, 2005
PublishedAugust 15, 2007
GrantedMay 8, 2013
Term endedOctober 31, 2025
Application numberEP 05825873
Classification (CPC)H04L63/105 +1 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.