Headset for an intercom

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Description

FIG. 1 is a perspective view of a headset for an intercom showing our new design;

FIG. 2 is a left side elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a rear elevational view thereof; and,

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D273009 March 13, 1984 Isaacs
D286632 November 11, 1986 Teunis
D302429 July 25, 1989 Leer
D358390 May 16, 1995 Hayashi
D364617 November 28, 1995 Fitzgerald
Other references
  • Design News, Dec. 19, 1988, p. 22, Voyager, a combined headset and microphone. (top right corner).
Patent History
Patent number: D406140
Type: Grant
Filed: Apr 6, 1995
Date of Patent: Feb 23, 1999
Assignee: Minnesota Mining & Manufacturing Co. (St. Paul, MN)
Inventors: Ronald W. Hall (Stillwater, MN), Dongene Kriegl (Hudson, WI)
Primary Examiner: Sandra L. Morris
Assistant Examiner: Nanda Bondade
Attorney: Stephen W. Buckingham
Application Number: 0/37,193
Classifications
Current U.S. Class: Headphone Or Headset (D14/205)
International Classification: 1401;