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Expired European patentEurope

Ring spinning machine

EP 0528056 B1 · Applicant: MASCHINENFABRIK RIETER AG

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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 July 30, 1991 and granted October 18, 1995. A European patent lasts at most 20 years from filing, so its term ended July 30, 2011.
  • 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 January 30, 2017.
  • 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.
FiledJuly 30, 1991
PublishedFebruary 24, 1993
GrantedOctober 18, 1995
Term endedJuly 30, 2011
Application numberEP 91112773
Classification (CPC)D01H7/60 +1 more

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedJuly 30, 1991PublishedFeb 24, 1993Patent grantedOct 18, 1995Term endedJuly 30, 2011

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