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Expired European patentEurope

Extensional mode piezoelectric microresonator

EP 0096653 B1 · Applicant: STATEK CORPARATION

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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 May 17, 1983 and granted April 12, 1989. A European patent lasts at most 20 years from filing, so its term ended May 17, 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 November 17, 2008.
  • 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.
FiledMay 17, 1983
PublishedDecember 21, 1983
GrantedApril 12, 1989
Term endedMay 17, 2003
Application numberEP 83810209
Classification (CPC)H03H9/0595 +2 more

Timeline

Timeline From EPO dates

1984198619881990199219941996199820002002Application filedMay 17, 1983PublishedDec 21, 1983Patent grantedApril 12, 1989Term endedMay 17, 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

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