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European application, no grantEurope

Method of fabricating film cooling slot in a hollow airfoil

EP 0228337 A2 · Applicant: UNITED TECHNOLOGIES CORPORATION

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Overview

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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 December 18, 1986 and never granted as a European patent. Had it been granted, its 20-year term would have ended December 18, 2006.
  • 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 June 18, 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.
FiledDecember 18, 1986
PublishedJuly 8, 1987
GrantedNever granted
Term endedDecember 18, 2006
Application numberEP 86630194
Classification (CPC)B23P15/02 +1 more

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedDec 18, 1986PublishedJuly 8, 1987Term endedDec 18, 2006

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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