Hand-held ultrasonic detector

- The Birtcher Corporation
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Description

FIG. 1 is a top and left-rear perspective view of a hand-held ultrasonic detector, showing our new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a left side elevational 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;

FIG. 7 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D217286 April 1970 Phelan
D240635 July 1976 Peterson
D254778 April 22, 1980 Kitada
D281677 December 10, 1985 Chen
4149419 April 17, 1979 Connell
4313444 February 2, 1982 Glenn
4494548 January 22, 1985 Buon
4517840 May 21, 1985 Thompson
4517985 May 21, 1985 Teslawski
4582066 April 15, 1986 Barnes
Patent History
Patent number: D297513
Type: Grant
Filed: Oct 17, 1985
Date of Patent: Sep 6, 1988
Assignee: The Birtcher Corporation (Los Angeles, CA)
Inventors: Robert S. Tetrault (Menlo Park, CA), Jack Potashnik (Los Altos Hills, CA)
Primary Examiner: Nelson C. Holtje
Law Firm: Ciotti & Murashige, Irell & Manella
Application Number: 6/788,493