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Expired European patentEurope

Disc brakes friction lining, especially for road vehicles and railway vehicles

EP 0442052 B1 · Applicant: AlliedSignal Bremsbelag GmbH

EPO PDF

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 November 26, 1990 and granted July 7, 1993. A European patent lasts at most 20 years from filing, so its term ended November 26, 2010.
  • 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 May 26, 2016.
  • 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.
FiledNovember 26, 1990
PublishedAugust 21, 1991
GrantedJuly 7, 1993
Term endedNovember 26, 2010
Application numberEP 90122522
Classification (CPC)C22C9/00 +2 more

Timeline

Timeline From EPO dates

1991199319951997199920012003200520072009Application filedNov 26, 1990PublishedAug 21, 1991Patent grantedJuly 7, 1993Term endedNov 26, 2010

Sources & verification