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Expired European patentEurope

Energy absorber, particularly for use as a motor vehicle bumper

EP 0054493 B1 · Applicant: AUTOMOBILES CITROEN

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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 December 14, 1981 and granted February 27, 1985. A European patent lasts at most 20 years from filing, so its term ended December 14, 2001.
  • 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 June 14, 2007.
  • 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.
FiledDecember 14, 1981
PublishedJune 23, 1982
GrantedFebruary 27, 1985
Term endedDecember 14, 2001
Application numberEP 81401993
Classification (CPC)F16F1/371 +2 more

Timeline

Timeline From EPO dates

1982198419861988199019921994199619982000Application filedDec 14, 1981PublishedJune 23, 1982Patent grantedFeb 27, 1985Term endedDec 14, 2001

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