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Expired European patentEurope

Metal layers for use in electronic circuit interconnection system

EP 0240746 B1 · Applicant: TEXAS INSTRUMENTS INCORPORATED

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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 September 7, 1981 and granted December 15, 1993. A European patent lasts at most 20 years from filing, so its term ended September 7, 2001.
  • 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 March 7, 2007.
  • 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.
FiledSeptember 7, 1981
PublishedOctober 14, 1987
GrantedDecember 15, 1993
Term endedSeptember 7, 2001
Application numberEP 87103300
Classification (CPC)H05K3/06 +2 more

Timeline

Timeline From EPO dates

1982198419861988199019921994199619982000Application filedSep 7, 1981PublishedOct 14, 1987Patent grantedDec 15, 1993Term endedSep 7, 2001

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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