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Expired European patentEurope

Method of enhancing the bond strength of an orthodontic appliance to a tooth

EP 0707833 B1 · Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY

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Overview

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

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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.

Why it's free to use

  • Filed October 13, 1995 and granted February 17, 1999. A European patent lasts at most 20 years from filing, so its term ended October 13, 2015.
  • 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 April 13, 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.
FiledOctober 13, 1995
PublishedApril 24, 1996
GrantedFebruary 17, 1999
Term endedOctober 13, 2015
Application numberEP 95116179
Classification (CPC)A61C7/12

Timeline

Timeline From EPO dates

1996199820002002200420062008201020122014Application filedOct 13, 1995PublishedApril 24, 1996Patent grantedFeb 17, 1999Term endedOct 13, 2015

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