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EP 0100429 B1 · Applicant: DEUTSCHE FORSCHUNGSANSTALT FÜR LUFT- UND RAUMFAHRT e.V.

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The published document from the EPO: abstract, claims, description and drawings. Open it full size

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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.

Why it's free to use

  • Filed June 25, 1983 and granted August 23, 1989. A European patent lasts at most 20 years from filing, so its term ended June 25, 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 December 25, 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.
FiledJune 25, 1983
PublishedFebruary 15, 1984
GrantedAugust 23, 1989
Term endedJune 25, 2003
Application numberEP 83106225
Classification (CPC)G01D5/147

Timeline

Timeline From EPO dates

1984198619881990199219941996199820002002Application filedJune 25, 1983PublishedFeb 15, 1984Patent grantedAug 23, 1989Term endedJune 25, 2003

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