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Expired European patentEurope

Electromechanical drive means for the advancement of a plasticising screw of a plastic injection moulding machine

EP 0447570 B1 · Applicant: SIEMENS AKTIENGESELLSCHAFT

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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 March 13, 1990 and granted December 22, 1993. A European patent lasts at most 20 years from filing, so its term ended March 13, 2010.
  • 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 September 13, 2015.
  • 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.
FiledMarch 13, 1990
PublishedSeptember 25, 1991
GrantedDecember 22, 1993
Term endedMarch 13, 2010
Application numberEP 90104738
Classification (CPC)B29C45/5008

Timeline

Timeline From EPO dates

1991199319951997199920012003200520072009Application filedMarch 13, 1990PublishedSep 25, 1991Patent grantedDec 22, 1993Term endedMarch 13, 2010

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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