Periodontal probe

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Description

FIG. 1 is a perspective view of a periodontal probe showing our new design;

FIG. 2 is a side elevational view thereof, the other side being a mirror image;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a rear elevational view thereof;

FIG. 6 is a front elevational view thereof;

FIG. 7 is a perspective view of a second embodiment thereof;

FIG. 8 is a side elevational view thereof, the other side being a mirror image;

FIG. 9 is a top plan view thereof;

FIG. 10 is a bottom plan view thereof;

FIG. 11 is a rear elevational view thereof;

FIG. 12 is a front elevational view thereof.

Referenced Cited
U.S. Patent Documents
D234257 February 1975 Berger
3559292 February 1971 Weissman
4501555 February 26, 1985 Ditchburn
4698019 October 6, 1987 Martin
4764114 August 16, 1988 Jeffcoat et al.
4791940 December 20, 1988 Huschfeld et al.
Patent History
Patent number: D321400
Type: Grant
Filed: Apr 9, 1990
Date of Patent: Nov 5, 1991
Assignee: Bausch & Lomb Professional Dental Products, Inc. (Rochester, NY)
Inventors: Ralph A. Beckman (Providence, RI), Henry D. Sharpe, III (Providence, RI), Len Curado (East Greenwich, RI), James W. Barfoot (Providence, RI)
Primary Examiner: Susan J. Lucas
Assistant Examiner: M. H. Tung
Law Firm: Salter & Michaelson
Application Number: 7/506,706