Stethoscope

Description

FIG. 1 is a perspective view showing our new design for a stethoscope;

FIG. 2 is a front view thereof;

FIG. 3 is an right side view thereof;

FIG. 4 is left side view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a top plan view thereof, the chestpiece being shifted for ease of illustration; and,

FIG. 7 is a bottom plan view thereof, the chestpiece being shifted for ease of illustration.

Referenced Cited
U.S. Patent Documents
D230212 January 1974 Hart
370711 September 1887 Pratt
3152659 October 1964 Littmann
3182129 May 1965 Clark et al.
3247324 April 1966 Cefaly et al.
3346069 October 1967 Speelman
3455293 July 1969 Bethune
3665087 May 1972 Poylo
3989895 November 2, 1976 O'Daniel, Sr.
4200169 April 29, 1980 MacDonald, III et al.
4254302 March 3, 1981 Walshe
4270627 June 2, 1981 Hill
4440258 April 3, 1984 Packard
4528689 July 9, 1985 Katz
4528690 July 9, 1985 Sedgwick
4534058 August 6, 1985 Hower
4569413 February 11, 1986 Allen
4770189 September 13, 1988 Shyu
4783813 November 8, 1988 Kempka
4878501 November 7, 1989 Shue
4903794 February 27, 1990 Klippert et al.
5010889 April 30, 1991 Bredesen et al.
5025809 June 25, 1991 Johnston et al.
5218969 June 15, 1993 Bredesen et al.
Patent History
Patent number: D389576
Type: Grant
Filed: Oct 22, 1996
Date of Patent: Jan 20, 1998
Inventors: James A. Grasfield (Sharon, MA), David E. Winston (Winchester, MA), Peter R. H. Stark (Stoneham, MA), Daniela Steinhubel (Stoneham, MA)
Primary Examiner: Louis S. Zarfas
Assistant Examiner: Frank Martinez
Attorney: Wolf, Greenfield & Sacks, P.C.
Application Number: 0/61,329
Classifications
Current U.S. Class: Stethoscope (24) (D24/134)
International Classification: 2402;