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Expired European patentEurope

Long-piston hydraulic machines

EP 1721075 B1 · Applicant: Torvec, Inc.

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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 October 12, 2004 and granted December 24, 2008. A European patent lasts at most 20 years from filing, so its term ended October 12, 2024.
  • Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
  • 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.
FiledOctober 12, 2004
PublishedNovember 15, 2006
GrantedDecember 24, 2008
Term endedOctober 12, 2024
Application numberEP 04795074
Classification (CPC)F04B27/109 +2 more

Timeline

Timeline From EPO dates

2005200720092011201320152017201920212023Application filedOct 12, 2004PublishedNov 15, 2006Patent grantedDec 24, 2008Term endedOct 12, 2024

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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.