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Expired European patentEurope

Regulating device for a screw rotor machine intended for supercharging internal combustion engines

EP 0775262 B1 · Applicant: OPCON AUTOROTOR AB

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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.

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Why it's free to use

  • Filed July 8, 1994 and granted June 14, 2000. A European patent lasts at most 20 years from filing, so its term ended July 8, 2014.
  • 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 8, 2020.
  • 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 8, 1994
PublishedMay 28, 1997
GrantedJune 14, 2000
Term endedJuly 8, 2014
Application numberEP 94921876
Classification (CPC)F04C28/14 +2 more

Timeline

Timeline From EPO dates

1995199719992001200320052007200920112013Application filedJuly 8, 1994PublishedMay 28, 1997Patent grantedJune 14, 2000Term endedJuly 8, 2014

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.