Expired European patentEurope
Novel halogenated compounds and fire retardant polymer compositions in which these compounds are incorporated
EP 0073539 B1 · Applicant: AKZO N.V.
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 August 12, 1982 and granted May 15, 1985. A European patent lasts at most 20 years from filing, so its term ended August 12, 2002.
- 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 February 12, 2008.
- 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.
FiledAugust 12, 1982
PublishedMarch 9, 1983
GrantedMay 15, 1985
Term endedAugust 12, 2002
Application numberEP 82201015
Classification (CPC)C07C69/63
Timeline
Timeline From EPO dates
Sources & verification
Official EPO records
Everything on this page comes from the EPO record linked above. EPO data used under CC BY 4.0.