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Expired European patentEurope

Thermal transfer recording medium

EP 0200711 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 March 19, 1986 and granted April 22, 1992. A European patent lasts at most 20 years from filing, so its term ended March 19, 2006.
  • 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 19, 2011.
  • 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 19, 1986
PublishedDecember 10, 1986
GrantedApril 22, 1992
Term endedMarch 19, 2006
Application numberEP 86890065
Classification (CPC)B41J31/05 +2 more

Timeline

Timeline From EPO dates

1987198919911993199519971999200120032005Application filedMarch 19, 1986PublishedDec 10, 1986Patent grantedApril 22, 1992Term endedMarch 19, 2006

Sources & verification