Ergonometric stethoscope chestpiece

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Description

FIG. 1 is a front elevational view of an ergonometric stethoscope chestpiece, showing our new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof; and,

FIG. 6 is a bottom plan view thereof, the broken line showing is for illustrative purposes only and forms no part of the claimed design.

Referenced Cited
U.S. Patent Documents
D213257 January 1969 Littmann
D214002 April 1969 Machlap et al.
D224988 October 1972 Allen
D277890 March 5, 1985 Loughridge et al.
D323394 January 21, 1992 Casto et al.
4805633 February 21, 1989 Kotani et al.
Patent History
Patent number: D338269
Type: Grant
Filed: Nov 6, 1992
Date of Patent: Aug 10, 1993
Assignee: Minnesota Mining and Manufacturing Company (St. Paul, MN)
Inventors: Joel R. Dufresne (St. Paul, MN), Alan P. Dieken (St. Paul, MN), Gerald E. Drake (Oakdale, MN), Curt Hostager, deceased (Late of St. Paul, MN), legal representative Hostager (Stillwater, MN)
Primary Examiner: Stella Reid
Assistant Examiner: I. Simmons
Attorneys: Gary L. Griswold, Walter N. Kirn, William D. Bauer
Application Number: 0/1,201
Classifications
Current U.S. Class: Stethoscope (24) (D24/134)