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European application, no grantEurope

Positive type photoresist composition

EP 0445680 A2 · Applicant: FUJI PHOTO FILM CO., LTD.

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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 March 4, 1991 and never granted as a European patent. Had it been granted, its 20-year term would have ended March 4, 2011.
  • 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 4, 2016.
  • 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 4, 1991
PublishedSeptember 11, 1991
GrantedNever granted
Term endedMarch 4, 2011
Application numberEP 91103183
Classification (CPC)C08G8/08 +1 more

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedMarch 4, 1991PublishedSep 11, 1991Term endedMarch 4, 2011

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