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European application, no grantEurope

Apparatus for measurement of specific dichroism of sheet materials

EP 0628802 A2 · Applicant: E.I. DU PONT DE NEMOURS AND COMPANY

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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 May 27, 1994 and never granted as a European patent. Had it been granted, its 20-year term would have ended May 27, 2014.
  • 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 November 27, 2019.
  • 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.
FiledMay 27, 1994
PublishedDecember 14, 1994
GrantedNever granted
Term endedMay 27, 2014
Application numberEP 94108172
Classification (CPC)G01N21/19

Timeline

Timeline From EPO dates

1995199719992001200320052007200920112013Application filedMay 27, 1994PublishedDec 14, 1994Term endedMay 27, 2014

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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