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Expired European patentEurope

Method of controlling impact force and shock interval in drop hammers

EP 0117382 B1 · Applicant: UDDCOMB SWEDEN AB

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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 February 28, 1983 and granted May 3, 1989. A European patent lasts at most 20 years from filing, so its term ended February 28, 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 August 28, 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.
FiledFebruary 28, 1983
PublishedSeptember 5, 1984
GrantedMay 3, 1989
Term endedFebruary 28, 2003
Application numberEP 83850049
Classification (CPC)E02D7/08

Timeline

Timeline From EPO dates

1984198619881990199219941996199820002002Application filedFeb 28, 1983PublishedSep 5, 1984Patent grantedMay 3, 1989Term endedFeb 28, 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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