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Expired European patentEurope

Electronic flash apparatus for reducing the incidence of human eyelid closures during exposure

EP 0448787 B1 · Applicant: POLAROID 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.

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Why it's free to use

  • Filed November 23, 1990 and granted March 27, 1996. A European patent lasts at most 20 years from filing, so its term ended November 23, 2010.
  • 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 May 23, 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.
FiledNovember 23, 1990
PublishedOctober 2, 1991
GrantedMarch 27, 1996
Term endedNovember 23, 2010
Application numberEP 90122428
Classification (CPC)H05B41/32 +1 more

Timeline

Timeline From EPO dates

1991199319951997199920012003200520072009Application filedNov 23, 1990PublishedOct 2, 1991Patent grantedMarch 27, 1996Term endedNov 23, 2010

Sources & verification

Official EPO records

Full published documentClaims, description and drawings as a PDF.EPOEuropean Patent RegisterProcedure, status, file inspection and legal events.EPOLinked open EP data recordThe bibliographic record this page is built from.EPO

Cross-check elsewhere

Google PatentsFull text, worldwide family, citing patents and legal events.patents.google.comEspacenetNational family members and their legal status.European Patent Office

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