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Expired European patentEurope

Manifold for cooling gas in a turbomachinery seal gap control

EP 0816639 B1 · Applicant: SOCIETE NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION Snecma

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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 June 26, 1997 and granted May 29, 2002. A European patent lasts at most 20 years from filing, so its term ended June 26, 2017.
  • 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 December 26, 2022.
  • 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.
FiledJune 26, 1997
PublishedJanuary 7, 1998
GrantedMay 29, 2002
Term endedJune 26, 2017
Application numberEP 97401486
Classification (CPC)F01D25/14 +1 more

Timeline

Timeline From EPO dates

1998200020022004200620082010201220142016Application filedJune 26, 1997PublishedJan 7, 1998Patent grantedMay 29, 2002Term endedJune 26, 2017

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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