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Expired European patentEurope

Operation system for hoisting device

EP 0085906 B1 · Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.

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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 January 27, 1983 and granted November 12, 1986. A European patent lasts at most 20 years from filing, so its term ended January 27, 2003.
  • 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 July 27, 2008.
  • 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.
FiledJanuary 27, 1983
PublishedAugust 17, 1983
GrantedNovember 12, 1986
Term endedJanuary 27, 2003
Application numberEP 83100760
Classification (CPC)F16D59/00 +2 more

Timeline

Timeline From EPO dates

1984198619881990199219941996199820002002Application filedJan 27, 1983PublishedAug 17, 1983Patent grantedNov 12, 1986Term endedJan 27, 2003

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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