Spark plug extension

- SEM AB
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Description

FIG. 1 is a perspective view of the spark plug extension;

FIG. 2 is a front view thereof;

FIG. 3 is a back view thereof;

FIG. 4 is a left view thereof.

FIG. 5 is a right view thereof.

FIG. 6 is a top view thereof; and,

FIG. 7 is a bottom view thereof.

The broken line portion of the figure drawings is included to show unclaimed subject matter only and forms no part of the claimed design.

Claims

We claim the ornamental design for a spark plug extension, as shown and described.

Referenced Cited
U.S. Patent Documents
D349683 August 16, 1994 Arens
D381626 July 29, 1997 Burnside
D391226 February 24, 1998 Coombs et al.
6216581 April 17, 2001 Murao et al.
6226809 May 8, 2001 Davies
D494136 August 10, 2004 Vesecky
7623336 November 24, 2009 Stevenson et al.
7825573 November 2, 2010 Callahan et al.
D637210 May 3, 2011 Wessol et al.
20080054777 March 6, 2008 Callahan et al.
Patent History
Patent number: D726112
Type: Grant
Filed: Nov 27, 2013
Date of Patent: Apr 7, 2015
Assignee: SEM AB (Amal)
Inventors: Lars-Åke Andersson (Åmål), Jörgen Bengtsson (Svanskog), Bert Gustafsson (Åmål)
Primary Examiner: Thomas Johannes
Assistant Examiner: Shawn T Gingrich
Application Number: 29/473,933
Classifications
Current U.S. Class: Spark Or Glow Plug (D13/127)