Dental dam

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Description

FIG. 1 is a perspective view of a dental dam, showing my new design;

FIG. 2 is a front elevation view of the same; and,

FIG. 3 is a rear elevation view of the same.

Referenced Cited
U.S. Patent Documents
4721465 January 26, 1988 Barasz
5390681 February 21, 1995 Daley
5582187 December 10, 1996 Hussey
5785052 July 28, 1998 Johnson
Foreign Patent Documents
406178791 June 1994 JPX
Patent History
Patent number: D413974
Type: Grant
Filed: Oct 3, 1997
Date of Patent: Sep 14, 1999
Inventor: Roberto Ramirez-Delgado (Zapopan, Jalisco C.P. 45210)
Primary Examiner: Stella Reid
Assistant Examiner: I Simmons
Law Firm: Rothwell, Figg, Ernst & Kurz
Application Number: 0/77,556
Classifications
Current U.S. Class: Prophylactic Article (D24/105)
International Classification: 2402;