Expired European patentEurope
Water-in-oil emulsion explosive composition
EP 0142271 B1 · Applicant: NIPPON OIL AND FATS COMPANY, LIMITED
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 October 11, 1984 and granted February 17, 1988. A European patent lasts at most 20 years from filing, so its term ended October 11, 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 April 11, 2010.
- 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.
FiledOctober 11, 1984
PublishedMay 22, 1985
GrantedFebruary 17, 1988
Term endedOctober 11, 2004
Application numberEP 84306949
Classification (CPC)C06B47/145 +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.