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Expired European patentEurope

Processes for isomerizing and oxidative iodinating aromatic compounds

EP 0307458 B1 · Applicant: EASTMAN KODAK COMPANY (a New Jersey corporation)

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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 16, 1988 and granted February 3, 1993. A European patent lasts at most 20 years from filing, so its term ended March 16, 2008.
  • 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 16, 2013.
  • 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 16, 1988
PublishedMarch 22, 1989
GrantedFebruary 3, 1993
Term endedMarch 16, 2008
Application numberEP 88903547
Classification (CPC)C07C25/22 +2 more

Timeline

Timeline From EPO dates

1989199119931995199719992001200320052007Application filedMarch 16, 1988PublishedMarch 22, 1989Patent grantedFeb 3, 1993Term endedMarch 16, 2008

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