Test strip

- Dart Industries Inc.
Description

FIG. 1 is a perspective view of a test strip showing my new design;

FIG. 2 is a side elevational view thereof, with the opposite side being a mirror image;

FIG. 3 is a top plan view thereof, with the bottom being flat and unornamented;

FIG. 4 is a front elevational view thereof;

FIG. 5 is a rear elevational view thereof.

Referenced Cited
U.S. Patent Documents
D266694 October 26, 1982 Boger et al.
D308722 June 19, 1990 Chang et al.
3819505 June 1974 Parent et al.
4518565 May 21, 1985 Boger et al.
4761381 August 2, 1988 Blatt et al.
Patent History
Patent number: D320269
Type: Grant
Filed: Jun 10, 1988
Date of Patent: Sep 24, 1991
Assignee: Dart Industries Inc. (Deerfield, IL)
Inventor: John M. Hammond (Wantage)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Marcus Jackson
Attorney: John A. Doninger
Application Number: 7/206,169
Classifications