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Expired European patentEurope

Novel method for oxyiodination product partial purification

EP 0381702 B1 · Applicant: EASTMAN KODAK COMPANY

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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 October 13, 1988 and granted August 26, 1992. A European patent lasts at most 20 years from filing, so its term ended October 13, 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 April 13, 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.
FiledOctober 13, 1988
PublishedAugust 16, 1990
GrantedAugust 26, 1992
Term endedOctober 13, 2008
Application numberEP 88909883
Classification (CPC)C07C17/156

Timeline

Timeline From EPO dates

1989199119931995199719992001200320052007Application filedOct 13, 1988PublishedAug 16, 1990Patent grantedAug 26, 1992Term endedOct 13, 2008

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