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Expired European patentEurope

Process for the production of 1,4-cyclohexanedimethanol

EP 0656337 B1 · Applicant: EASTMAN CHEMICAL COMPANY

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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.

Why it's free to use

  • Filed January 6, 1994 and granted July 30, 1997. A European patent lasts at most 20 years from filing, so its term ended January 6, 2014.
  • 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 July 6, 2019.
  • 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.
FiledJanuary 6, 1994
PublishedJune 7, 1995
GrantedJuly 30, 1997
Term endedJanuary 6, 2014
Application numberEP 94300072
Classification (CPC)C07C31/276 +1 more

Timeline

Timeline From EPO dates

1995199719992001200320052007200920112013Application filedJan 6, 1994PublishedJune 7, 1995Patent grantedJuly 30, 1997Term endedJan 6, 2014

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