Electric lamp and discharge devices – Spark plugs – Shaped electrode chamber – insulator end – shell skirt – baffle...
Reexamination Certificate
2006-05-02
2006-05-02
Williams, Joseph (Department: 2879)
Electric lamp and discharge devices
Spark plugs
Shaped electrode chamber, insulator end, shell skirt, baffle...
C313S118000, C313S137000
Reexamination Certificate
active
07038363
ABSTRACT:
A spark plug comprising an insulator, on at least a part of a surface of the insulator being formed a marking layer and a glaze layer, wherein the marking layer is exposed on the surface of the insulator and has a composition as described herein.
REFERENCES:
patent: 6492289 (2002-12-01), Suzuki et al.
patent: 6566792 (2003-05-01), Nishikawa
patent: 6590318 (2003-07-01), Nishikawa et al.
patent: 2002/0033659 (2002-03-01), Nishikawa et al.
patent: 2002/0041136 (2002-04-01), Nishikawa
patent: 2002/0067110 (2002-06-01), Nishikawa et al.
patent: 1 168 545 (2002-01-01), None
patent: 2001-39733 (2001-02-01), None
patent: 2001-203059 (2001-07-01), None
patent: 2001-244043 (2001-09-01), None
patent: 2002-15833 (2002-01-01), None
patent: 2002-175865 (2002-06-01), None
European Search Report for EP 03 25 8224 dated Mar. 18, 2004.
NGK Spark Plug Co. Ltd.
Quarterman Kevin
Sughrue & Mion, PLLC
Williams Joseph
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