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Expired European patentEurope

Method and apparatus for non-contact ultrasonic flaw detection

EP 0019002 B1 · Applicant: SUMITOMO METAL INDUSTRIES, LTD.

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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 June 13, 1979 and granted July 20, 1983. A European patent lasts at most 20 years from filing, so its term ended June 13, 1999.
  • 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 December 13, 2004.
  • 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.
FiledJune 13, 1979
PublishedNovember 26, 1980
GrantedJuly 20, 1983
Term endedJune 13, 1999
Application numberEP 79900653
Classification (CPC)G01N29/2418

Timeline

Timeline From EPO dates

1980198219841986198819901992199419961998Application filedJune 13, 1979PublishedNov 26, 1980Patent grantedJuly 20, 1983Term endedJune 13, 1999

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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