Ear plug
Description
The broken lines shown in the
Claims
The ornamental design for a sparkplug-shaped ear plug, as shown and described.
Referenced Cited
U.S. Patent Documents
3259128 | July 1966 | Leight |
D242743 | December 14, 1976 | Leight |
4314553 | February 9, 1982 | Westerdal |
4774938 | October 4, 1988 | Leight |
5809574 | September 22, 1998 | Falco et al. |
5904143 | May 18, 1999 | Magidson et al. |
6129175 | October 10, 2000 | Tutor et al. |
7107993 | September 19, 2006 | Magidson |
7264081 | September 4, 2007 | Bruck |
7464786 | December 16, 2008 | Falco et al. |
Patent History
Patent number: D591416
Type: Grant
Filed: May 30, 2008
Date of Patent: Apr 28, 2009
Inventors: Randal D. Prowizor (Oak Grove, MN), Robert J. Randle (Richfield, MN)
Primary Examiner: Ian Simmons
Assistant Examiner: Anna J Burmeister
Attorney: Vidas, Arrett & Steinkraus, P.A.
Application Number: 29/318,906
Type: Grant
Filed: May 30, 2008
Date of Patent: Apr 28, 2009
Inventors: Randal D. Prowizor (Oak Grove, MN), Robert J. Randle (Richfield, MN)
Primary Examiner: Ian Simmons
Assistant Examiner: Anna J Burmeister
Attorney: Vidas, Arrett & Steinkraus, P.A.
Application Number: 29/318,906
Classifications
Current U.S. Class:
Ear Plug Or Nose Clip (D24/106)