Expired European patentEurope
An electrically activated detonator assembly
EP 0088516 B1 · Applicant: ICI AMERICAS INC.
Overview
The published document from the EPO: abstract, claims, description and drawings. Open it full size
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Read the whole patent
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.
Why it's free to use
- Filed February 4, 1983 and granted May 21, 1986. A European patent lasts at most 20 years from filing, so its term ended February 4, 2003.
- 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 August 4, 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.
FiledFebruary 4, 1983
PublishedSeptember 14, 1983
GrantedMay 21, 1986
Term endedFebruary 4, 2003
Application numberEP 83300574
Classification (CPC)F42B3/18 +2 more
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.