Expired European patentEurope
Process for production of spark generating tube, and product thereof
EP 1663913 B1 · Applicant: Britanite S/A- Indústrias Químicas
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 20, 2004 and granted September 3, 2008. A European patent lasts at most 20 years from filing, so its term ended September 20, 2024.
- Supplementary protection certificates extend only medicine and crop-protection patents, and it isn't classified as either.
- 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 20, 2004
PublishedJune 7, 2006
GrantedSeptember 3, 2008
Term endedSeptember 20, 2024
Application numberEP 04761538
Classification (CPC)C06C5/04 +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.