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Expired European patentEurope

Electroconductive resin coatings for recording paper with improved solvent holdout properties and papers coated with them

EP 0011486 B1 · Applicant: CALGON 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 14, 1979 and granted July 20, 1983. A European patent lasts at most 20 years from filing, so its term ended November 14, 1999.
  • 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 14, 2005.
  • 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 14, 1979
PublishedMay 28, 1980
GrantedJuly 20, 1983
Term endedNovember 14, 1999
Application numberEP 79302577
Classification (CPC)G03G5/107

Timeline

Timeline From EPO dates

1980198219841986198819901992199419961998Application filedNov 14, 1979PublishedMay 28, 1980Patent grantedJuly 20, 1983Term endedNov 14, 1999

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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