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Expired European patentEurope

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EP 0321680 B1 · Applicant: SALZGITTER MASCHINENBAU GMBH

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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 October 31, 1988 and granted August 29, 1990. A European patent lasts at most 20 years from filing, so its term ended October 31, 2008.
  • 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 May 1, 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.
FiledOctober 31, 1988
PublishedJune 28, 1989
GrantedAugust 29, 1990
Term endedOctober 31, 2008
Application numberEP 88118082
Classification (CPC)B65G59/023

Timeline

Timeline From EPO dates

1989199119931995199719992001200320052007Application filedOct 31, 1988PublishedJune 28, 1989Patent grantedAug 29, 1990Term endedOct 31, 2008

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.