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Expired European patentEurope

Flame-retardant polymer compositions

EP 0007460 B1 · Applicant: CIBA-GEIGY AG

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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.

Why it's free to use

  • Filed June 29, 1979 and granted September 15, 1982. A European patent lasts at most 20 years from filing, so its term ended June 29, 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 December 29, 2004.
  • 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.
FiledJune 29, 1979
PublishedFebruary 6, 1980
GrantedSeptember 15, 1982
Term endedJune 29, 1999
Application numberEP 79102182
Classification (CPC)C08K5/523

Timeline

Timeline From EPO dates

1980198219841986198819901992199419961998Application filedJune 29, 1979PublishedFeb 6, 1980Patent grantedSep 15, 1982Term endedJune 29, 1999

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