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Expired European patentEurope

Processing chamber for cryogenic models in a wind tunnel

EP 0581007 B1 · Applicant: EUROPEAN TRANSONIC WINDTUNNEL GmbH

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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 17, 1993 and granted December 18, 1996. A European patent lasts at most 20 years from filing, so its term ended June 17, 2013.
  • 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 17, 2018.
  • 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 17, 1993
PublishedFebruary 2, 1994
GrantedDecember 18, 1996
Term endedJune 17, 2013
Application numberEP 93109665
Classification (CPC)G01M9/04

Timeline

Timeline From EPO dates

1994199619982000200220042006200820102012Application filedJune 17, 1993PublishedFeb 2, 1994Patent grantedDec 18, 1996Term endedJune 17, 2013

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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