Plug-mounted background noise amplifier

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Description

FIG. 1 is a top plan view of a plug-mounted background noise amplifier showing our new design;

FIG. 2 is a sectional view thereof, taken along line 2--2 of FIG. 1;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a sectional view thereof, taken along line 5--5 of FIG. 1;

FIG. 6 is a right side elevational view thereof;

FIG. 7 is a rear elevational view thereof; and

FIG. 8 is a left side elevational view thereof.

Referenced Cited
U.S. Patent Documents
D261887 November 17, 1981 Hisatsune
D280721 September 24, 1985 Quigley et al.
2832012 April 1958 Kleason et al.
4594644 June 10, 1986 Painter
Patent History
Patent number: D297011
Type: Grant
Filed: Apr 25, 1985
Date of Patent: Aug 2, 1988
Inventors: William D. Quigley (Nutley, NJ), Philip H. Nelson (Spring Valley, NY)
Primary Examiner: Bernard Ansher
Assistant Examiner: Theodore M. Shooman
Attorneys: Ralph R. Roberts, Patrick J. Pinto
Application Number: 6/727,349
Classifications
Current U.S. Class: D14/96; D14/99