Stethoscope chestpiece portion

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Description

FIG. 1 is a front, left perspective view of the stethoscope chestpiece portion showing our new design;

FIG. 2 is a top view thereof;

FIG. 3 is a bottom view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a left side view thereof; and,

FIG. 7 is a right side view thereof.

The broken lines in FIGS. 1, 2 and 4-7 show a part of the stethoscope chestpiece for illustrative purposes only and form no part of the illustrated design.

Referenced Cited
U.S. Patent Documents
D185178 May 1959 Spears
D205171 June 1966 Littmann
D213257 January 1969 Littmann
D214002 April 1969 Machlup et al.
D256951 September 16, 1980 Allen
D277890 March 5, 1985 Loughridge et al.
D323394 January 21, 1992 Casto et al.
D337381 July 13, 1993 Dufresne et al.
D338269 August 10, 1993 Dufresne et al.
D353196 December 6, 1994 Savage et al.
D363120 October 10, 1995 Savage et al.
D395509 June 23, 1998 Packard et al.
D410285 May 25, 1999 Packard et al.
3108652 October 1963 Littmann
3275099 September 1966 Speelman
3288246 November 1966 Allen
3339667 September 1967 Speelman
3472335 October 1969 Allen
3570625 March 1971 Allen
4440258 April 3, 1984 Packard
4475619 October 9, 1984 Packard
4569413 February 11, 1986 Allen
4852684 August 1, 1989 Packard
4913259 April 3, 1990 Packard
4995473 February 26, 1991 Packard
5288953 February 22, 1994 Peart
5796053 August 18, 1998 Shieh
Other references
  • Brochure entitled, "Littmann Classic II and Pediatric and Infant Stethoscope," dated Jan. 5, 1994, (1 page). Brochure entitled, "The Allen Series," by Newport Instruments, Inc. (1983) (5 pages). Brochure entitled, "Have you heard the latest about Auscultation?", by Welch Allyn Company, (1987) (10 pages). Brochure entitled, "Jetz mit 10 Seiten Wohnmobel," by Wapema, (1988-1989) (8 pages). Brochure entitled, "Adgram," vol. 8, Issue 5, by American Diagnostic Corporation, Sep.-Oct. 1994, (1 page) Note the Master Adscope.TM. 600. Catalog by nm Medical, (1994) (3 pages). Brochure entitled, "Anesthesia Specialties" by Buffalo Medical Specialties MFG, Inc. (1983) (17 pages). Brochure entitled, "Series 22 Stethoscope," Series 12 Stethoscope and Price List dated Mar. 1, 1980, by Newport Instruments, Inc. (4 pages). Brochure entitled, "Littmann Classic II Stethoscope, The standard of the industry," 3M HealthCare, (1 page). Brochure entitled, "3MLittmann Master Classic Stethoscope, The most efficient general exam stethoscope," 3M HealthCare (1 page). Brochure entitled, "Heine Gamma 20" by Heine USA LTD, (1 page). Brochure entitled, "Die MET-Stethoskop-Baureihe", by F.L. Fischer, (2 pages). Brochure entitled, "3MLittmann Master Cardiology Stethoscope," 3M Health Care (1 page). Brochure entitled, "3M Littmann Cardiology II Stethoscope," (1 page). Brochure entitled, "Heine Gamma", by Heine USA LTD, (3 pages), (prior art). Brochure entitled, "Sensitive Dual Membrane Stethoscope", by Erka (2 pages), (prior art). Brochure entitled, "Sphygmomanometers, Stethoscopes & Accessories," by Welch Allyn Company, (5 pages), (prior art). Brochure entitled, "Range of Stethoscopes", by Kamed.RTM. Medical Apparatus and Instruments, (13 pages), (prior art). Catalog by American Diagnostic Corporation entitled, "Medical Instruments Worldwide Catalogue", (8 pages), (prior art).
Patent History
Patent number: D432238
Type: Grant
Filed: May 17, 1999
Date of Patent: Oct 17, 2000
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: Joy A. Packard (Somerset, WI), Thomas J. Packard (Somerset, WI)
Primary Examiner: Ian Simmons
Attorney: Jeffrey J. Hohenshell
Application Number: 0/105,028
Classifications
Current U.S. Class: Stethoscope (24) (D24/134)
International Classification: 2402;