The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 25, 2003
Filed:
Feb. 23, 2001
Applicant:
Inventors:
Yoshihiro Matsubara, Mie, JP;
Kenji Ishida, Aichi, JP;
Assignee:
NGK Spark Plug Co., Ltd., Aichi, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F02P 1/508 ;
U.S. Cl.
CPC ...
F02P 1/508 ;
Abstract
An ignition system for an internal combustion engine. At least one of a plurality of spark plugs and attached to each of cylinders A, B, B, and A is a self-cleaning spark plug A.