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Expired European patentEurope

Process for engobing or glazing roofing tiles

EP 0342335 B1 · Applicant: Hans Lingl Anlagenbau und Verfahrenstechnik GmbH & Co. KG

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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 March 23, 1989 and granted September 9, 1992. A European patent lasts at most 20 years from filing, so its term ended March 23, 2009.
  • 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 23, 2014.
  • 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 23, 1989
PublishedNovember 23, 1989
GrantedSeptember 9, 1992
Term endedMarch 23, 2009
Application numberEP 89105195
Classification (CPC)B28B11/044 +1 more

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedMarch 23, 1989PublishedNov 23, 1989Patent grantedSep 9, 1992Term endedMarch 23, 2009

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