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Expired European patentEurope

Position/force controlling apparatus for working machine with multiple of degrees of freedom

EP 0331265 B1 · Applicant: HITACHI CONSTRUCTION MACHINERY CO., LTD.

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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 February 28, 1989 and granted August 23, 1995. A European patent lasts at most 20 years from filing, so its term ended February 28, 2009.
  • 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 August 28, 2014.
  • 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.
FiledFebruary 28, 1989
PublishedSeptember 6, 1989
GrantedAugust 23, 1995
Term endedFebruary 28, 2009
Application numberEP 89200495
Classification (CPC)B25J9/1633 +1 more

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedFeb 28, 1989PublishedSep 6, 1989Patent grantedAug 23, 1995Term endedFeb 28, 2009

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