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Expired European patentEurope

Rotary assemblies

EP 0543601 B1 · Applicant: HOBOURN AUTOMOTIVE LIMITED

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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 November 16, 1992 and granted July 10, 1996. A European patent lasts at most 20 years from filing, so its term ended November 16, 2012.
  • 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 16, 2018.
  • 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 16, 1992
PublishedMay 26, 1993
GrantedJuly 10, 1996
Term endedNovember 16, 2012
Application numberEP 92310443
Classification (CPC)F04D13/12 +2 more

Timeline

Timeline From EPO dates

1993199519971999200120032005200720092011Application filedNov 16, 1992PublishedMay 26, 1993Patent grantedJuly 10, 1996Term endedNov 16, 2012

Sources & verification