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Expired European patentEurope

Fully distributed message storage facilities in a distributed switching system

EP 0760573 B1 · Applicant: AT&T Corp.

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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.

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Why it's free to use

  • Filed August 21, 1996 and granted December 8, 2004. A European patent lasts at most 20 years from filing, so its term ended August 21, 2016.
  • 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 February 21, 2022.
  • 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.
FiledAugust 21, 1996
PublishedMarch 5, 1997
GrantedDecember 8, 2004
Term endedAugust 21, 2016
Application numberEP 96306102
Classification (CPC)H04M3/53325

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedAug 21, 1996PublishedMarch 5, 1997Patent grantedDec 8, 2004Term endedAug 21, 2016

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.