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Title:
Smoke detector
United States Patent D271671
Inventors:
Thornton Jr., Hugh P. (Acton, MA)
Application Number:
D/319149
Publication Date:
12/06/1983
Filing Date:
11/09/1981
Assignee:
American District Telegraph Company (Jersey City, NJ)
Primary Class:
Field of Search:
D10/104, D10/106, 340/693, 340/545, 340/547, 340/555, 340/578, 340/584, 340/586
View Patent Images:
US Patent References:
D260975Fire alarmSeptember, 1981LamD10/106
4257039Smoke detectorMarch, 1981Webb et al.340/693
3226703Fire detecting deviceDecember, 1965FinkleD10/106
Primary Examiner:
Burke, Wallace R.
Assistant Examiner:
Gitlin, Suzanne N.
Attorney, Agent or Firm:
Grover, James H.
Claims:
1. The ornamental design for a smoke detector, as shown and described.

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.