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Expired European patentEurope

Extensible hose for reducing pressure pulses

EP 0471044 B1 · Applicant: INGENIEURBURO H.LÜTHIN AG

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Overview

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

Read the whole patent

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 February 5, 1991 and granted March 9, 1994. A European patent lasts at most 20 years from filing, so its term ended February 5, 2011.
  • 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 5, 2016.
  • 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 5, 1991
PublishedFebruary 19, 1992
GrantedMarch 9, 1994
Term endedFebruary 5, 2011
Application numberEP 91902983
Classification (CPC)F16L55/02763 +1 more

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedFeb 5, 1991PublishedFeb 19, 1992Patent grantedMarch 9, 1994Term endedFeb 5, 2011

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