Ultrasonic cockroach repellent

Description

FIG. 1 is a top, left, front perspective view of an ultrasonic cockroach repellent illustrating my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof;

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

FIG. 7 is a right side elevational view thereof.

Referenced Cited
U.S. Patent Documents
D269699 July 12, 1983 May et al.
D280538 September 10, 1985 Von Till
D289919 May 19, 1987 O'Neil, Jr.
D305457 January 9, 1990 Nakao
2026393 December 1935 Linck
2710485 June 1955 Starr
4526320 July 2, 1985 von Philipp et al.
4549693 October 29, 1985 Barlics
Patent History
Patent number: D332987
Type: Grant
Filed: Oct 26, 1990
Date of Patent: Feb 2, 1993
Inventor: Jan Der-Jinn (Taipei)
Primary Examiner: A. Hugo Word
Assistant Examiner: Doris V. Coles
Application Number: 7/605,015
Classifications