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Expired European patentEurope

Process for preparing moulded objects

EP 0347528 B1 · Applicant: DEUTSCHE SOLVAY-WERKE 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 March 23, 1989 and granted December 28, 1994. 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
PublishedDecember 27, 1989
GrantedDecember 28, 1994
Term endedMarch 23, 2009
Application numberEP 89105206
Classification (CPC)C08J9/34 +1 more

Timeline

Timeline From EPO dates

1990199219941996199820002002200420062008Application filedMarch 23, 1989PublishedDec 27, 1989Patent grantedDec 28, 1994Term endedMarch 23, 2009

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