Dental prophylactic device

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Description

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

FIG. 2 is a top plan view thereof, shown on a reduced scale;

FIG. 3 is a side elevational view thereof, shown on a reduced scale;

FIG. 4 is a bottom plan view thereof, shown on a reduced scale;

FIG. 5 is a front end elevational view thereof, shown on a reduced scale;

FIG. 6 is a rear end elevational view thereof, shown on a reduced scale.

Referenced Cited
U.S. Patent Documents
D97360 October 1935 Stevens
D136631 November 1943 Bernard et al.
2016951 October 1935 Welker
2077540 April 1937 Welker
3018498 January 1962 Wasserman
Foreign Patent Documents
544720 April 1942 GBX
Patent History
Patent number: D270307
Type: Grant
Filed: Sep 21, 1981
Date of Patent: Aug 30, 1983
Inventor: William P. Hollingshead (Easton, PA)
Primary Examiner: Catherine E. Kemper
Law Firm: Paul & Paul
Application Number: 6/303,784
Classifications
Current U.S. Class: D 4/24
International Classification: D0402;