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Expired European patentEurope

Spiral wound gasket and fabrication method thereof

EP 0391069 B1 · Applicant: Agency of Industrial Science and Technology of Ministry of International Trade and Industry

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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 1, 1990 and granted May 29, 1996. A European patent lasts at most 20 years from filing, so its term ended March 1, 2010.
  • 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 1, 2015.
  • 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 1, 1990
PublishedOctober 10, 1990
GrantedMay 29, 1996
Term endedMarch 1, 2010
Application numberEP 90103976
Classification (CPC)F16J15/125

Timeline

Timeline From EPO dates

1991199319951997199920012003200520072009Application filedMarch 1, 1990PublishedOct 10, 1990Patent grantedMay 29, 1996Term endedMarch 1, 2010

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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