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Expired European patentEurope

Wheel slip control on differentially driven wheels

EP 0051600 B1 · Applicant: CATERPILLAR TRACTOR CO.

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Overview

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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 May 7, 1980 and granted April 2, 1986. A European patent lasts at most 20 years from filing, so its term ended May 7, 2000.
  • 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 November 7, 2005.
  • 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.
FiledMay 7, 1980
PublishedMay 19, 1982
GrantedApril 2, 1986
Term endedMay 7, 2000
Application numberEP 81900677
Classification (CPC)B60T8/175 +2 more

Timeline

Timeline From EPO dates

1981198319851987198919911993199519971999Application filedMay 7, 1980PublishedMay 19, 1982Patent grantedApril 2, 1986Term endedMay 7, 2000

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.