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Expired European patentEurope

A shock or pressure wave detecting transducer assembly

EP 0015159 B1 · Applicant: Australasian Training Aids (Pty) Ltd.

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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 February 25, 1980 and granted April 20, 1983. A European patent lasts at most 20 years from filing, so its term ended February 25, 2000.
  • 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 August 25, 2005.
  • 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.
FiledFebruary 25, 1980
PublishedSeptember 3, 1980
GrantedApril 20, 1983
Term endedFebruary 25, 2000
Application numberEP 80300549
Classification (CPC)G10K11/004 +1 more

Timeline

Timeline From EPO dates

1981198319851987198919911993199519971999Application filedFeb 25, 1980PublishedSep 3, 1980Patent grantedApril 20, 1983Term endedFeb 25, 2000

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.