Patent
   D440175
Priority
Dec 03 1999
Filed
Dec 03 1999
Issued
Apr 10 2001
Expiry
Apr 10 2015
Assg.orig
Entity
unknown
2
5
n/a
The ornamental design for a siren, as shown and described.

FIG. 1 is a perspective view of a siren for showing a new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a right side elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a rear elevational view thereof; and,

FIG. 8 is a detail view thereof, wherein the siren has a bowed shape and the siren comprises a protuberant assembly on two sides of the siren to facilitate the emplacement and disassembly of the siren, an impeller-like vocal hole is located on a front end of the siren to enlarge the sound, a metal frame is fixed on a bottom of the siren to maintain the siren on a horizontal plane, and a screw is located on the bottom of the siren to adjust an angle of elevation of the siren.

Hu, Hsin-Kai

Patent Priority Assignee Title
D485201, May 23 2003 ELECTRONIC CONTROLS COMPANY Backup alarm design
D512336, Apr 05 2004 Omega Patents, L.L.C. Security siren
Patent Priority Assignee Title
D279771, Dec 19 1983 Kobishi Electric Co., Ltd. Siren
D345317, Jul 06 1993 DEI HEADQUATERS, INC; DEI HEADQUARTERS, INC Siren
D382221, Jun 05 1996 PORTMAN SECURITY SYSTEM INTERNATIONAL CO , LTD Siren
D397636, Apr 02 1997 Portman Secutity System International Co., Ltd. Siren speaker
D406074, May 13 1998 Alertek Corporation Electronic siren
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Nov 23 1999HU, HSIN-KAIAlertek CorporationASSIGNMENT OF ASSIGNORS INTEREST SEE DOCUMENT FOR DETAILS 0104470312 pdf
Dec 03 1999Alertek Corporation(assignment on the face of the patent)
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