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Patent
   D249778
Priority
Apr 15 1977
Filed
Apr 15 1977
Issued
Oct 03 1978
Expiry
Oct 03 1992
Inventors
Kobayakawa…
Assg.orig
Hokuyo Aut…
Assg.curr
Hokuyo Aut…
Entity
unknown
Referenced by
3
References
3
Maint.:
n/a
The ornamental design for a combined intrusion detector and alarm, as shown.

FIG. 1 is a front, right side and top perspective view of a combined intrusion detector and alarm showing my new design,

FIG. 2 is a left side elevational view thereof,

FIG. 3 is a rear elevational view thereof, and

FIG. 4 is a bottom plan view thereof.
INVENTORS:

Kobayakawa, Toru

THIS PATENT IS REFERENCED BY THESE PATENTS:
Patent Priority Assignee Title
D261628, Aug 16 1978 Alarm system control unit
D280390, Sep 26 1983 Delta Products, Inc. Motion detector case
D962800, Dec 11 2020 Motion sensor
THIS PATENT REFERENCES THESE PATENTS:
Patent Priority Assignee Title
3623088,
191581,
222941,
ASSIGNMENT RECORDS    Assignment records on the USPTO
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Executed onAssignorAssigneeConveyanceFrameReelDoc
Apr 15 1977Hokuyo Automatic Co., Ltd.(assignment on the face of the patent)
MAINTENANCE FEES AND DATES:    Maintenance records on the USPTO
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