Smoke detector

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Description

FIG. 1 is a perspective view of the smoke detector according to the present invention;

FIG. 2 is a front elevational view of the smoke detector;

FIG. 3 is a top plan view of the smoke detector; and

FIG. 4 is a bottom plan view of the smoke detector.

Referenced Cited
U.S. Patent Documents
D240120 June 1976 Pasquarette
D246635 December 13, 1977 Boldt et al.
D246958 January 17, 1978 Rakocy et al.
D249481 September 19, 1978 Conforti et al.
Patent History
Patent number: D258943
Type: Grant
Filed: Apr 4, 1978
Date of Patent: Apr 21, 1981
Assignee: Electronic Security Systems, Inc. (Houston, TX)
Inventor: William W. Ng (Pasadena, CA)
Primary Examiner: W. Stallard
Law Firm: Christie, Parker & Hale
Application Number: 5/893,486
Classifications
Current U.S. Class: D10/106
International Classification: D1005;