Dental syringe

Description

FIG. 1 is a perspective view of a dental syringe showing my new design, the broken lines showing a nozzle being for illustrative purposes only and forming no part of the claimed design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
2539510 January 1951 Friden
2956563 October 1960 Sarnoff
2994323 August 1961 Dann et al.
3025953 March 1962 Taggart et al.
3141460 July 1964 Tsochatzopoulos
3327904 June 1967 Goda et al.
3581399 June 1971 Dragan
3900954 August 1975 Dragan
4492576 January 8, 1985 Dragan
4619613 October 28, 1986 Dragan
Foreign Patent Documents
0225071 April 1943 CHX
Patent History
Patent number: D328643
Type: Grant
Filed: Nov 1, 1989
Date of Patent: Aug 11, 1992
Assignee: Confi-Dental Products Co. (Louisville, CO)
Inventor: Herman B. Mitchell (Broomfield, CO)
Primary Examiner: A. Hugo Word
Assistant Examiner: Celia A. Murphy
Attorney: Donald W. Margolis
Application Number: 7/430,193