Expired European patentEurope
Packet transmitter unit, packet receiver unit and packet transmission system
EP 1271894 B1 · Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA
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 February 13, 2001 and granted May 4, 2005. A European patent lasts at most 20 years from filing, so its term ended February 13, 2021.
- A supplementary protection certificate, which can extend a medicine or crop-protection patent, adds at most five and a half years, so even that would have ended by August 13, 2026.
- 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.
FiledFebruary 13, 2001
PublishedJanuary 2, 2003
GrantedMay 4, 2005
Term endedFebruary 13, 2021
Application numberEP 01902844
Classification (CPC)H04L69/326 +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.