Rotary dental brush

Description

FIG. 1 is a side elevational view of a rotary dental brush showing my new design, the opposite side being a mirror image;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof; and,

FIG. 5 is a rear elevational view thereof.

Referenced Cited
U.S. Patent Documents
D144163 March 1946 Dolnick
D306925 March 27, 1990 Bell
1225955 May 1917 Hickman
1338821 May 1920 Eisner et al.
1467874 September 1923 Muchow
1893002 January 1933 Rothschild
2220053 October 1940 Pruner
2435421 February 1948 Blair
2464321 March 1949 Konczal
2653598 September 1953 Torino
4296518 October 27, 1981 Furrier et al.
4592109 June 3, 1986 Borea et al.
Patent History
Patent number: D330287
Type: Grant
Filed: Feb 16, 1990
Date of Patent: Oct 20, 1992
Inventor: Thomas B. Wise (Bay City, MI)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Lavone D. Tabor
Law Firm: Learman & McCulloch
Application Number: 7/481,110
Classifications
Current U.S. Class: D/4109