Expired European patentEurope
Primer charges and method of manufacture thereof
EP 0334725 B1 · Applicant: NCS PYROTECHNIE ET TECHNOLOGIES
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 15, 1989 and granted February 17, 1993. A European patent lasts at most 20 years from filing, so its term ended March 15, 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 September 15, 2014.
- 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 15, 1989
PublishedSeptember 27, 1989
GrantedFebruary 17, 1993
Term endedMarch 15, 2009
Application numberEP 89400720
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.