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Expired European patentEurope

Thin-film soi mosfet and method of manufacturing thereof

EP 0370809 B1 · Applicant: MITSUBISHI DENKI KABUSHIKI KAISHA

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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 November 23, 1989 and granted March 2, 1994. A European patent lasts at most 20 years from filing, so its term ended November 23, 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 May 23, 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.
FiledNovember 23, 1989
PublishedMay 30, 1990
GrantedMarch 2, 1994
Term endedNovember 23, 2009
Application numberEP 89312166
Classification (CPC)H10D30/6708 +2 more

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedNov 23, 1989PublishedMay 30, 1990Patent grantedMarch 2, 1994Term endedNov 23, 2009

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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