Expired European patentEurope
Resin bonded water bearing explosive
EP 0043235 B1 · Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
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 June 24, 1981 and granted August 7, 1985. A European patent lasts at most 20 years from filing, so its term ended June 24, 2001.
- 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 December 24, 2006.
- 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.
FiledJune 24, 1981
PublishedJanuary 6, 1982
GrantedAugust 7, 1985
Term endedJune 24, 2001
Application numberEP 81302851
Classification (CPC)C06B47/00 +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.