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Expired European patentEurope

Endless rotary belts with compensation for a shift perpendicular to their moving direction

EP 0242403 B1 · Applicant: International Business Machines Corporation

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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 March 25, 1986 and granted November 22, 1990. A European patent lasts at most 20 years from filing, so its term ended March 25, 2006.
  • 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 September 25, 2011.
  • 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.
FiledMarch 25, 1986
PublishedOctober 28, 1987
GrantedNovember 22, 1990
Term endedMarch 25, 2006
Application numberEP 86104057
Classification (CPC)G06K7/015 +2 more

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedMarch 25, 1986PublishedOct 28, 1987Patent grantedNov 22, 1990Term endedMarch 25, 2006

Sources & verification