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EP 0102575 B1 · Applicant: HITACHI, 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.

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Why it's free to use

  • Filed August 19, 1983 and granted August 13, 1986. A European patent lasts at most 20 years from filing, so its term ended August 19, 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 February 19, 2009.
  • 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.
FiledAugust 19, 1983
PublishedMarch 14, 1984
GrantedAugust 13, 1986
Term endedAugust 19, 2003
Application numberEP 83108208
Classification (CPC)B23P19/10 +2 more

Timeline

Timeline From EPO dates

1984198619881990199219941996199820002002Application filedAug 19, 1983PublishedMarch 14, 1984Patent grantedAug 13, 1986Term endedAug 19, 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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.