Fire alarm housing

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FIG. 1 is a perspective view of the fire alarm housing embodying my design;

FIG. 2 is an enlarged plan view thereof;

FIG. 3 is an enlarged side elevational view thereof;

FIG. 4 is an enlarged front elevational view thereof.

Referenced Cited
U.S. Patent Documents
D216229 December 1969 Hauser
Other references
  • Sears Fall and Winter Catalog, 1974, p. 905, Ionization Detector (top right).
Patent History
Patent number: D247665
Type: Grant
Filed: Feb 23, 1976
Date of Patent: Apr 4, 1978
Assignee: Patent Development & Management Company (Elgin, IL)
Inventor: Larry D. Larsen (Palatine, IL)
Primary Examiner: Susie J. Mercer
Attorney: James W. Potthast
Application Number: 5/660,254
Current U.S. Class: Element Or Attachment (D10/121)
International Classification: D1005;