Intruder alarm for doors, windows and the like

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Description

FIG. 1 is a perspective view of the intruder alarm, for doors, windows and the like showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a right side elevational view thereof;

FIG. 4 is a left side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view; and

FIG. 7 is a rear elevational view thereof.

Referenced Cited
U.S. Patent Documents
920123 May 1909 Fawcett
1374684 May 1912 Rieck
3567882 March 1971 Beck
3932856 January 13, 1976 Tremont
3968484 July 6, 1976 Weber
4376276 March 8, 1983 Barta
Other references
  • On Guard., Catalogue 727r., May 10, 1973, p. 5, All Purpose Switch, MD848B, location-lower right hand corner.
Patent History
Patent number: D272237
Type: Grant
Filed: Nov 12, 1981
Date of Patent: Jan 17, 1984
Inventor: David Preciado (Newbury Park, CA)
Primary Examiner: Wallace R. Burke
Assistant Examiner: Susanne N. Gitlin
Law Firm: Cislo, O'Reilly & Thomas
Application Number: 6/320,412
Classifications
Current U.S. Class: D10/106
International Classification: D1005;