Patent
   D292892
Priority
Jan 15 1985
Filed
Jan 15 1985
Issued
Nov 24 1987
Expiry
Nov 24 2001
Assg.orig
Entity
unknown
7
6
n/a
The ornamental design for an intrusion detector, substantially as shown.

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

FIG. 2 is a top view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a right side elevational view thereof;

FIG. 6 is a left side elevational view thereof; and

FIG. 7 is a bottom view thereof.

O'Grady, Richard M., Avery, Ronald G., Ronn, Benjamin T.

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Patent Priority Assignee Title
4250498, May 19 1978 Erwin Sick GmbH, Optik-Elektronik Light barrier receiver
4275303, Nov 13 1979 ARROWHEAD ENTERPRISES INC Passive infrared intrusion detection system
4447726, Apr 16 1982 SCANTRONIC, INC Passive infrared intrusion detector
4484075, May 17 1982 Cerberus AG; CERBERUS AG , A CORP OF SWITZERLAND Infrared intrusion detector with beam indicators
D275657, Mar 04 1982 Cerberus A.G. Intrusion detector
D277652, Aug 16 1982 Cerberus AG Passive infrared intrusion detector unit
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Jan 15 1985Cerberus AG(assignment on the face of the patent)
Feb 25 1985RONN, BENJAMIN T Cerberus AGASSIGNMENT OF ASSIGNORS INTEREST 0043820142 pdf
Feb 25 1985AVERY, RONALD G Cerberus AGASSIGNMENT OF ASSIGNORS INTEREST 0043820142 pdf
Mar 07 1985O GRADY, RICHARD M Cerberus AGASSIGNMENT OF ASSIGNORS INTEREST 0043820142 pdf
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