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Expired European patentEurope

Pneumatic double acting piston and cylinder device

EP 0246736 B1 · Applicant: COLT INTERNATIONAL HOLDINGS A.G.

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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 March 20, 1987 and granted February 20, 1991. A European patent lasts at most 20 years from filing, so its term ended March 20, 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 September 20, 2012.
  • 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.
FiledMarch 20, 1987
PublishedNovember 25, 1987
GrantedFebruary 20, 1991
Term endedMarch 20, 2007
Application numberEP 87302404
Classification (CPC)F15B15/261

Timeline

Timeline From EPO dates

1988199019921994199619982000200220042006Application filedMarch 20, 1987PublishedNov 25, 1987Patent grantedFeb 20, 1991Term endedMarch 20, 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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