Smoke detector

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Description

FIG. 1 is a front elevational view of a smoke detector, showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a right side elevational view thereof.

Referenced Cited
U.S. Patent Documents
D260975 September 29, 1981 Lam
3226703 December 1965 Finkle
4257039 March 17, 1981 Webb et al.
Patent History
Patent number: D271671
Type: Grant
Filed: Nov 9, 1981
Date of Patent: Dec 6, 1983
Assignee: American District Telegraph Company (Jersey City, NJ)
Inventor: Hugh P. Thornton, Jr. (Acton, MA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Suzanne N. Gitlin
Attorney: James H. Grover
Application Number: 6/319,149
Classifications
Current U.S. Class: D10/106; D10/104
International Classification: D1005;