Expired European patentEurope
Impact sensitive high temperature detonator
EP 0122012 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 March 5, 1984 and granted September 21, 1988. A European patent lasts at most 20 years from filing, so its term ended March 5, 2004.
- 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 September 5, 2009.
- 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.
FiledMarch 5, 1984
PublishedOctober 17, 1984
GrantedSeptember 21, 1988
Term endedMarch 5, 2004
Application numberEP 84301441
Classification (CPC)C06C7/00 +1 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.