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Expired European patentEurope

Silicon based substrate with yttrium silicate environmental/thermal barrier layer and method for preparing an article therefrom

EP 1044944 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 April 14, 2000 and granted October 26, 2005. A European patent lasts at most 20 years from filing, so its term ended April 14, 2020.
  • 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 October 14, 2025.
  • 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.
FiledApril 14, 2000
PublishedOctober 18, 2000
GrantedOctober 26, 2005
Term endedApril 14, 2020
Application numberEP 00108257
Classification (CPC)C04B41/009 +2 more

Timeline

Timeline From EPO dates

2001200320052007200920112013201520172019Application filedApril 14, 2000PublishedOct 18, 2000Patent grantedOct 26, 2005Term endedApril 14, 2020

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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