Colorimeter

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Description

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

FIG. 2 is a right side elevational view;

FIG. 3 is a left side elevational view;

FIG. 4 is a bottom plan view;

FIG. 5 is a front elevational view; and

FIG. 6 is a rear elevational view thereof.

Referenced Cited
U.S. Patent Documents
D252801 September 4, 1979 Usuda
D282644 February 18, 1986 Collister
D292277 October 13, 1987 Collister et al.
D309437 July 24, 1990 Ng
D312621 December 4, 1990 Soren et al.
4552458 November 12, 1985 Lowne
Patent History
Patent number: D318245
Type: Grant
Filed: Jan 4, 1989
Date of Patent: Jul 16, 1991
Assignee: Boehringer Mannheim Corporation (Indianapolis, IN)
Inventors: George H. Sierra (Indianapolis, IN), Robert B. Summers (Indianapolis, IN), James D. Morrow, II (Oak Park, IL)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Antoine D. Davis
Law Firm: Barnes & Thornburg
Application Number: 7/293,305
Classifications
Current U.S. Class: Chemical (12) (D10/81)