Dental matrix retainer ring

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Description

FIG. 1 is a top plan view of a dental matrix retainer ring showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a front perspective view thereof;

FIG. 4 is a rear perspective view thereof;

FIG. 5 is a left side elevation thereof; and,

FIG. 6 is another front perspective view thereof shown on a slightly enlarged scale; and,

FIG. 7 is a rear perspective view thereof.

Claims

The ornamental design for a dental matrix retainer ring, as shown and described.

Referenced Cited
U.S. Patent Documents
943353 December 1909 Ivory
1378748 May 1921 Wiggins
2771677 November 1956 Curry
D346657 May 3, 1994 LaPlante et al.
D346860 May 10, 1994 Kesling
D353200 December 6, 1994 Martin
5607302 March 4, 1997 Garrison et al.
6325625 December 4, 2001 Meyer
6336810 January 8, 2002 Bertoletti
6712608 March 30, 2004 Bills
7077651 July 18, 2006 Anderson
7214058 May 8, 2007 Summer
Patent History
Patent number: D604854
Type: Grant
Filed: May 6, 2008
Date of Patent: Nov 24, 2009
Inventor: Simon Paul McDonald (Kati Kati, BOP)
Primary Examiner: Charles A Rademaker
Application Number: 29/307,672
Classifications