Colorimeter

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Description

FIG. 1 is a top plan view of a colorimeter showing our new design;

FIG. 2 is a front elevational view;

FIG. 3 is a right side elevational view;

FIG. 4 is a rear elevational view;

FIG. 5 is a left side elevational view; and

FIG. 6 is a bottom plan view thereof.

Referenced Cited
U.S. Patent Documents
D282644 February 18, 1986 Collister
D292277 October 13, 1987 Collister et al.
D312621 December 4, 1990 Soren et al.
4552458 November 12, 1985 Lowne
4871258 October 3, 1989 Herpichbochn et al.
Patent History
Patent number: D321488
Type: Grant
Filed: Apr 29, 1988
Date of Patent: Nov 12, 1991
Assignee: Boehringer Mannheim Corporation (Indianapolis, IN)
Inventors: George H. Sierra (Indianapolis, IN), Robert B. Summers (Indianapolis, IN)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Antoine D. Davis
Law Firm: Barnes & Thornburg
Application Number: 7/188,532
Classifications
Current U.S. Class: Chemical (12) (D10/81)