Carbon monoxide detector

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Description

FIG. 1 is a front elevational view of a carbon monoxide detector showing my new design;

FIG. 2 is a right side elevational view, the left side being an identical image;

FIG. 3 is a top plan view;

FIG. 4 is a bottom plan view; and

FIG. 5 is a rear elevational view thereof.

Referenced Cited
U.S. Patent Documents
D155351 September 1949 Lee
D188218 June 1960 Rosen et al.
D198711 July 1964 Reingrober
D224341 July 1972 Cairo
D225453 December 1972 Hill
D241727 October 1976 Barton
D245965 October 4, 1977 Haustad
D256785 September 9, 1980 Salsgiver
D263688 April 6, 1982 Bologna et al.
D288785 March 17, 1987 Levine
3714421 January 1973 Josias et al.
4606219 August 19, 1986 Bout et al.
Patent History
Patent number: D308646
Type: Grant
Filed: Jan 8, 1987
Date of Patent: Jun 19, 1990
Assignee: Aqua Meter Instrument Corporation (Roseland, NJ)
Inventor: Henry G. Grilk (West Milford, NJ)
Primary Examiner: Nelson C. Holtje
Assistant Examiner: Antoine D. Davis
Attorney: Edwin E. Greigg
Application Number: 7/1,494
Classifications
Current U.S. Class: Chemical (12) (D10/81)