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Expired European patentEurope

Endodontic instrument and procedure

EP 0822787 B1 · Applicant: Tulsa Dental Products Inc.

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

Read the whole patent

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 16, 1996 and granted July 5, 2000. A European patent lasts at most 20 years from filing, so its term ended April 16, 2016.
  • 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 16, 2021.
  • 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 16, 1996
PublishedFebruary 11, 1998
GrantedJuly 5, 2000
Term endedApril 16, 2016
Application numberEP 96912799
Classification (CPC)A61C5/50

Timeline

Timeline From EPO dates

1997199920012003200520072009201120132015Application filedApril 16, 1996PublishedFeb 11, 1998Patent grantedJuly 5, 2000Term endedApril 16, 2016

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.