Brush head for mounting in a dental instrument

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Description

FIG. 1 is a top plan view of a brush head for mounting in a dental instrument showing my new design;

FIG. 2 is a side elevational view thereof, the sides opposite and adjacent being identical in appearance; and

FIG. 3 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D45199 February 1914 McDonagh et al.
D66427 January 1925 Richland
D138384 July 1944 Rosengard
D237188 October 1975 Fattaleh
D278764 May 14, 1985 Olsen
D295801 May 24, 1988 Olsen
1673913 June 1928 Jurgensen
2196667 April 1940 Moseley
2849740 September 1958 Pauker
3939520 February 24, 1976 Axelsson
3949768 April 13, 1976 Doyle
3964122 June 22, 1976 Kurdy
4088413 May 9, 1978 Rossignol de la Ronde et al.
4091490 May 30, 1978 Allen
4454622 June 19, 1984 Poppendieck
4679272 July 14, 1987 Florence
Foreign Patent Documents
3528596 February 1987 DEX
443435 September 1912 FRX
792674 January 1936 FRX
Patent History
Patent number: D306236
Type: Grant
Filed: May 10, 1988
Date of Patent: Feb 27, 1990
Assignee: Professional Dental Technologies, Inc. (Batesville, AR)
Inventor: Hans Olsen (Copenhagen)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Brian N. Vinson
Law Firm: Lee, Mann, Smith, McWilliams & Sweeney
Application Number: 7/192,499
Classifications
Current U.S. Class: D/4104; D24/16