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Expired European patentEurope

Rotor blade with integral platform and a fillet cooling passage

EP 0708875 B1 · Applicant: UNITED TECHNOLOGIES CORPORATION

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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 November 17, 1993 and granted August 6, 1997. A European patent lasts at most 20 years from filing, so its term ended November 17, 2013.
  • 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 May 17, 2019.
  • 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.
FiledNovember 17, 1993
PublishedMay 1, 1996
GrantedAugust 6, 1997
Term endedNovember 17, 2013
Application numberEP 94902283
Classification (CPC)F01D5/187

Timeline

Timeline From EPO dates

1994199619982000200220042006200820102012Application filedNov 17, 1993PublishedMay 1, 1996Patent grantedAug 6, 1997Term endedNov 17, 2013

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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