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Expired European patentEurope

Gear-changing system for motor-vehicle reduction gears, with interruption of the traction force

EP 0201570 B1 · Applicant: ZWN ZAHNRADWERK NEUENSTEIN GMBH & CO.

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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 October 31, 1985 and granted April 19, 1989. A European patent lasts at most 20 years from filing, so its term ended October 31, 2005.
  • 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 1, 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.
FiledOctober 31, 1985
PublishedNovember 20, 1986
GrantedApril 19, 1989
Term endedOctober 31, 2005
Application numberEP 85905761
Classification (CPC)F16H61/0403

Timeline

Timeline From EPO dates

1986198819901992199419961998200020022004Application filedOct 31, 1985PublishedNov 20, 1986Patent grantedApril 19, 1989Term endedOct 31, 2005

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

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