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Expired European patentEurope

Optical printing system with discontinuous print medium

EP 0511368 B1 · Applicant: POLAROID CORPORATION

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Overview

The published document from the EPO: abstract, claims, description and drawings. Open it full size

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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 September 18, 1991 and granted May 10, 1995. A European patent lasts at most 20 years from filing, so its term ended September 18, 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 March 18, 2017.
  • 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.
FiledSeptember 18, 1991
PublishedNovember 4, 1992
GrantedMay 10, 1995
Term endedSeptember 18, 2011
Application numberEP 92900689
Classification (CPC)H04N1/036 +2 more

Timeline

Timeline From EPO dates

1992199419961998200020022004200620082010Application filedSep 18, 1991PublishedNov 4, 1992Patent grantedMay 10, 1995Term endedSep 18, 2011

Sources & verification