Expired European patentEurope
Electrical ignition and method for its production
EP 0248977 B1 · Applicant: Dynamit Nobel Aktiengesellschaft
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 13, 1987 and granted January 2, 1992. A European patent lasts at most 20 years from filing, so its term ended February 13, 2007.
- 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 13, 2012.
- 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 13, 1987
PublishedDecember 16, 1987
GrantedJanuary 2, 1992
Term endedFebruary 13, 2007
Application numberEP 87102055
Classification (CPC)F42B3/124
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.