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Expired European patentEurope

Method of producing a dental restoration using CAD/CAM

EP 0824897 B1 · Applicant: American Thermocraft Corp.

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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 March 11, 1997 and granted July 25, 2001. A European patent lasts at most 20 years from filing, so its term ended March 11, 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 September 11, 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.
FiledMarch 11, 1997
PublishedFebruary 25, 1998
GrantedJuly 25, 2001
Term endedMarch 11, 2017
Application numberEP 97420039
Classification (CPC)A61C13/0004

Timeline

Timeline From EPO dates

1998200020022004200620082010201220142016Application filedMarch 11, 1997PublishedFeb 25, 1998Patent grantedJuly 25, 2001Term endedMarch 11, 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

Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.