Ratchet syringe for composite dental materials

Description

FIG. 1 is a perspective view of a ratchet syringe for composite dental materials showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a top plan view thereof;

FIG. 5 is a left side elevational view thereof, the right side being a mirror image;

FIG. 6 is a bottom plan view thereof; and

FIG. 7 is a perspective view thereof, shown in the fully retracted position .

Referenced Cited
U.S. Patent Documents
D200104 January 1965 Cocherell et al.
2917830 December 1959 Cerveris
4658993 April 21, 1987 Vlasidi
Patent History
Patent number: D297458
Type: Grant
Filed: May 15, 1986
Date of Patent: Aug 30, 1988
Assignee: Johnson & Johnson Consumer Products, Inc. (New Brunswick, NJ)
Inventor: Robert D. Holewinski (Lakehurst, NJ)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Brian N. Vinson
Application Number: 6/863,553
Classifications
Current U.S. Class: D24/14