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Expired European patentEurope

Method of manufacturing an hydropneumatic accumulator and accumulator obtained by such a method

EP 0256925 B1 · Applicant: AUTOMOBILES PEUGEOT

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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 July 30, 1987 and granted April 18, 1990. A European patent lasts at most 20 years from filing, so its term ended July 30, 2007.
  • 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 January 30, 2013.
  • 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.
FiledJuly 30, 1987
PublishedFebruary 24, 1988
GrantedApril 18, 1990
Term endedJuly 30, 2007
Application numberEP 87401784
Classification (CPC)F15B1/14

Timeline

Timeline From EPO dates

1988199019921994199619982000200220042006Application filedJuly 30, 1987PublishedFeb 24, 1988Patent grantedApril 18, 1990Term endedJuly 30, 2007

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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