Patent
   D275657
Priority
Mar 04 1982
Filed
Mar 04 1982
Issued
Sep 25 1984
Expiry
Sep 25 1998
Assg.orig
Entity
unknown
4
4
n/a
The ornamental design for an intrusion detector, as shown.

FIG. 1 is a perspective view of an intrusion detector showing my new design;

FIG. 2 is a top plan view thereof, the bottom plan view being substantially a mirror image;

FIG. 3 is a rear elevational view thereof;

FIG. 4 is a side elevational view taken from the left of FIG. 1, the right side elevational view being substantially a mirror image;

FIG. 5 is a front elevational view thereof.

Kahl, Jr., William G.

Patent Priority Assignee Title
D292892, Jan 15 1985 Cerberus AG Intrusion detector
D296531, Mar 11 1985 Passive infra-red sensor
D307245, Jul 29 1987 C & K Systems, Inc. Intrusion detector unit
D307560, Oct 28 1987 American Telephone and Telegraph Company; AT&T Information Systems Inc. Housing for an infrared signal detector
Patent Priority Assignee Title
3182307,
3383674,
4004228, Apr 29 1974 Integrated Electronics, Ltd. Portable transmitter
240410,
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Feb 17 1982KAHL, WILLIAM G JR CEREBERUS AGASSIGNMENT OF ASSIGNORS INTEREST 0039940172 pdf
Mar 04 1982Cerberus A.G.(assignment on the face of the patent)
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