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Expired European patentEurope

Process and apparatus for producing a cylindrically-shaped glass article

EP 0819655 B1 · Applicant: Heraeus Quarzglas GmbH

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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.

Why it's free to use

  • Filed July 4, 1997 and granted December 8, 1999. A European patent lasts at most 20 years from filing, so its term ended July 4, 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 January 4, 2023.
  • 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.
FiledJuly 4, 1997
PublishedJanuary 21, 1998
GrantedDecember 8, 1999
Term endedJuly 4, 2017
Application numberEP 97111305
Classification (CPC)C03B23/047 +1 more

Timeline

Timeline From EPO dates

1998200020022004200620082010201220142016Application filedJuly 4, 1997PublishedJan 21, 1998Patent grantedDec 8, 1999Term endedJuly 4, 2017

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