Plaque removal brush

- Johnson & Johnson
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Description

FIG. 1 is a side elevational view of a plaque removal brush showing our new design, the opposite side being a mirror image thereof;

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 bottom plan view thereof; and

FIG. 6 is a view of the brush head, taken in the direction of the arrow shown in FIG. 1.

Referenced Cited
U.S. Patent Documents
2241584 May 1941 Cohen
Foreign Patent Documents
443435 September 1912 FRX
1286416 August 1972 GBX
Patent History
Patent number: D252597
Type: Grant
Filed: Sep 30, 1977
Date of Patent: Aug 14, 1979
Assignee: Johnson & Johnson (New Brunswick, NJ)
Inventors: Henry A. Holzwarth (Bayside, NY), John D. Wark (Freeport, NY)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Catherine Kemper
Attorney: Steven P. Berman
Application Number: 5/838,439
Classifications
Current U.S. Class: D 4/25
International Classification: D0402;