Expired European patentEurope
Emulsion explosive manufacturing method
EP 0366274 B1 · Applicant: DYNO NOBEL 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 September 29, 1989 and granted November 18, 1993. A European patent lasts at most 20 years from filing, so its term ended September 29, 2009.
- 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 March 29, 2015.
- 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.
FiledSeptember 29, 1989
PublishedMay 2, 1990
GrantedNovember 18, 1993
Term endedSeptember 29, 2009
Application numberEP 89309935
Classification (CPC)C06B21/00
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.