Interdental brush

- John O. Butler Company
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Description

FIG. 1 is a perspective view of an interdental brush, showing our new design.

FIG. 2 is a side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a fragmentary side elevational view of a second embodiment of an interdental brush; and

FIG. 6 is a fragmentary side elevational view of a third embodiment of an interdental brush.

Referenced Cited
U.S. Patent Documents
D242883 January 4, 1977 De Marco
D262236 December 8, 1981 Tarrson et al.
D262315 December 15, 1981 Tarrson et al.
D262316 December 15, 1981 Tarrson et al.
1465522 August 1923 Lundy
1806520 May 1931 Cave
1894413 January 1933 Nenning et al.
1996205 April 1935 Jackson
2164219 June 1939 McGerry
2167129 July 1939 Sleeper
2206542 July 1940 Arnold
2319841 May 1943 Bate
3204275 September 1965 Baker
3559226 February 1971 Burns
3720975 March 1973 Nelson
3892040 July 1975 Marquis
3939520 February 24, 1976 Axelsson
3964122 June 22, 1976 Kurdy
4030199 June 21, 1977 Russell
4222143 September 16, 1980 Tarrson et al.
4319377 March 16, 1982 Tarrson et al.
4387479 June 14, 1983 Kigyos
Foreign Patent Documents
679174 July 1939 DE2
Other references
  • "D-Plak-R" Toothpick Holder, Dental Products Report, 5/74. A photograph of three brushes by Sanyo-Hapics Perio Pic, from Japan Perio Center (date unknown). Page 40, Oral Health, Jan. 1979. Picture of unknown Japanese brush (marked Exhibit AS1) of unknown date. Denticator brushes (date unknown). Photocopy of three specimens (marked Exhibit AT2) of unknown date.
Patent History
Patent number: D291505
Type: Grant
Filed: Feb 21, 1985
Date of Patent: Aug 25, 1987
Assignee: John O. Butler Company (Chicago, IL)
Inventors: Emanuel B. Tarrson (Chicago, IL), Dane Maric (Chicago, IL), Thomas P. Kelly (Palatine, IL)
Primary Examiner: Catherine E. Kemper
Law Firm: Laff, Whitesel, Conte & Saret
Application Number: 6/703,810
Classifications
Current U.S. Class: D/4104; D/4131