Expired European patentEurope
Semiconductor bridge circuit apparatus and igniter including the same
EP 1798512 B1 · Applicant: Nipponkayaku Kabushikikaisha
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 October 4, 2005 and granted August 10, 2011. A European patent lasts at most 20 years from filing, so its term ended October 4, 2025.
- 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.
FiledOctober 4, 2005
PublishedJune 20, 2007
GrantedAugust 10, 2011
Term endedOctober 4, 2025
Application numberEP 05793812
Classification (CPC)F42B3/14 +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.