Push to talk control box

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Description

FIG. 1 is a perspective view of a PTT control box showing the new design;

FIG. 2 is a front view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a back view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a left side view thereof; and,

FIG. 8 is an illustration of an exemplary use of a PTT control box incorporating the claimed design, which shows the PTT control box connected to a radio and to a hearing protection system.

Claims

The ornamental design for a push to talk control box, as shown and described.

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Patent History
Patent number: D645028
Type: Grant
Filed: Apr 1, 2010
Date of Patent: Sep 13, 2011
Assignee: 3M Innovative Properties Company (St. Paul, MN)
Inventors: Michael J. Pescetto (Fishers, IN), James D. Brown (Bloomington, IN)
Primary Examiner: Paula Greene
Attorney: Anna A. Wetzels
Application Number: 29/358,830
Classifications
Current U.S. Class: Microphone (D14/225)